- 里论外几
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(1)2.9 × 0.5 = 答案:1.45 (2)5.9 × 0.2 = 答案:1.18 (3)3.6 × 7 = 答案:25.2 (4)4.3 × 0.3 = 答案:1.29 (5)5.9 × 9 = 答案:53.1 (6)9.4 × 9 = 答案:84.6 (7)7.5 × 6 = 答案:45 (8)1.3 × 3 = 答案:3.9 (9)3.8 × 7 = 答案:26.6 (10)4.7 × 5 = 答案:23.5 (11)5.2 × 7 = 答案:36.4 (12)2.3 × 2 = 答案:4.6 (13)6.8 × 7 = 答案:47.6 (14)6.7 × 0.3 = 答案:2.01 (15)7.5 × 7 = 答案:52.5 (16)7.1 × 0.7 = 答案:4.97 (17)6.6 × 2 = 答案:13.2 (18)3.5 × 0.2 = 答案:0.7 (19)3.7 × 0.3 = 答案:1.11 (20)4 × 0.3 = 答案:1.2 (21)9.2 × 9 = 答案:82.8 (22)6.1 × 9 = 答案:54.9 (23)6.8 × 5 = 答案:34 (24)4.8 × 4 = 答案:19.2 (25)4.1 × 2 = 答案:8.2 (26)6.4 × 0.4 = 答案:2.56 (27)9.6 × 7 = 答案:67.2 (28)1.9 × 0.8 = 答案:1.52 (29)4.2 × 0.3 = 答案:1.26 (30)1.9 × 0.8 = 答案:1.52 (31)8.7 × 0.4 = 答案:3.48 (32)2.6 × 7 = 答案:18.2 (33)2.1 × 3 = 答案:6.3 (34)1.6 × 2 = 答案:3.2 (35)5.3 × 3 = 答案:15.9 (36)8.5 × 9 = 答案:76.5 (37)6.9 × 0.7 = 答案:4.83 (38)6.6 × 0.4 = 答案:2.64 (39)4.3 × 8 = 答案:34.4 (40)8.2 × 3 = 答案:24.6 (41)8.4 × 6 = 答案:50.4 (42)2 × 6 = 答案:12 (43)8.7 × 0.3 = 答案:2.61 (44)3.2 × 0.5 = 答案:1.6 (45)8.5 × 0.9 = 答案:7.65 (46)7.1 × 0.7 = 答案:4.97 (47)7.1 × 6 = 答案:42.6 (48)7.4 × 0.5 = 答案:3.7 (49)9.6 × 3 = 答案:28.8 (50)8.4 × 8 = 答案:67.2 (51)2.5 × 4 = 答案:10 (52)1.3 × 3 = 答案:3.9 (53)8 × 0.4 = 答案:3.2 (54)7.8 × 9 = 答案:70.2 (55)6 × 0.5 = 答案:3 (56)7.7 × 8 = 答案:61.6 (57)9.9 × 0.7 = 答案:6.93 (58)5.4 × 2 = 答案:10.8 (59)5.1 × 2 = 答案:10.2 (60)4.7 × 3 = 答案:14.1 (61)1.2 × 0.2 = 答案:0.24 (62)5.3 × 0.2 = 答案:1.06 (63)2.7 × 8 = 答案:21.6 (64)2 × 9 = 答案:18 (65)9.6 × 9 = 答案:86.4 (66)5.4 × 3 = 答案:16.2 (67)9.3 × 3 = 答案:27.9 (68)5.5 × 0.8 = 答案:4.4 (69)7.4 × 0.7 = 答案:5.18 (70)3.4 × 0.6 = 答案:2.04 (71)4.5 × 0.4 = 答案:1.8 (72)3.8 × 7 = 答案:26.6 (73)4.7 × 0.2 = 答案:0.94 (74)1.5 × 6 = 答案:9 (75)8 × 0.9 = 答案:7.2 (76)9.2 × 0.6 = 答案:5.52 (77)2.4 × 9 = 答案:21.6 (78)1.8 × 5 = 答案:9 (79)8.9 × 0.6 = 答案:5.34 (80)3.2 × 0.8 = 答案:2.56 (81)9.7 × 9 = 答案:87.3 (82)6 × 7 = 答案:42 (83)1.6 × 0.7 = 答案:1.12 (84)6.3 × 2 = 答案:12.6 (85)7.1 × 0.8 = 答案:5.68 (86)5.2 × 7 = 答案:36.4 (87)3.9 × 0.8 = 答案:3.12 (88)9.9 × 0.2 = 答案:1.98 (89)2.4 × 0.4 = 答案:0.96 (90)3.5 × 5 = 答案:17.5 (91)7.7 × 3 = 答案:23.1 (92)9.5 × 0.2 = 答案:1.9 (93)7.8 × 0.3 = 答案:2.34 (94)3.4 × 8 = 答案:27.2 (95)1.3 × 0.6 = 答案:0.78 (96)9 × 0.5 = 答案:4.5 (97)3.5 × 0.5 = 答案:1.75 (98)3.4 × 9 = 答案:30.6 (99)3.4 × 0.9 = 答案:3.06 (100)6.5 × 0.5 = 答案:3.25 1)7.4 × 6 = 答案:44.4 (2)2.3 × 5 = 答案:11.5 (3)5.1 × 0.4 = 答案:2.04 (4)9.6 × 4 = 答案:38.4 (5)5.4 × 5 = 答案:27 (6)1.5 × 0.8 = 答案:1.2 (7)9.4 × 2 = 答案:18.8 (8)1.6 × 0.8 = 答案:1.28 (9)7.5 × 0.7 = 答案:5.25 (10)3.7 × 9 = 答案:33.3 (11)1.8 × 0.6 = 答案:1.08 (12)3.5 × 7 = 答案:24.5 (13)9.3 × 4 = 答案:37.2 (14)2.7 × 0.7 = 答案:1.89 (15)5.2 × 7 = 答案:36.4 (16)3.8 × 0.2 = 答案:0.76 (17)1.2 × 0.9 = 答案:1.08 (18)6.1 × 7 = 答案:42.7 (19)3.8 × 0.7 = 答案:2.66 (20)1.6 × 5 = 答案:8 (21)5.9 × 0.3 = 答案:1.77 (22)9 × 9 = 答案:81 (23)7.1 × 0.3 = 答案:2.13 (24)9.7 × 2 = 答案:19.4 (25)5.8 × 0.8 = 答案:4.64 (26)1.7 × 6 = 答案:10.2 (27)9.6 × 0.5 = 答案:4.8 (28)1.8 × 4 = 答案:7.2 (29)4.3 × 0.6 = 答案:2.58 (30)1.3 × 9 = 答案:11.7 (31)2.9 × 8 = 答案:23.2 (32)5.6 × 7 = 答案:39.2 (33)5.3 × 0.6 = 答案:3.18 (34)5.4 × 0.7 = 答案:3.78 (35)5.3 × 0.2 = 答案:1.06 (36)8.3 × 2 = 答案:16.6 (37)9.5 × 3 = 答案:28.5 (38)7.3 × 2 = 答案:14.6 (39)2 × 0.5 = 答案:1 (40)5.2 × 0.6 = 答案:3.12 (41)9.7 × 7 = 答案:67.9 (42)6.1 × 8 = 答案:48.8 (43)6.7 × 0.2 = 答案:1.34 (44)8.6 × 6 = 答案:51.6 (45)3.1 × 0.5 = 答案:1.55 (46)8.2 × 6 = 答案:49.2 (47)1.5 × 6 = 答案:9 (48)8.4 × 2 = 答案:16.8 (49)1.3 × 6 = 答案:7.8 (50)8.9 × 0.5 = 答案:4.45 (51)6.7 × 2 = 答案:13.4 (52)5.4 × 6 = 答案:32.4 (53)6.3 × 9 = 答案:56.7 (54)6.4 × 3 = 答案:19.2 (55)8.5 × 0.2 = 答案:1.7 (56)1.5 × 0.5 = 答案:0.75 (57)3 × 0.4 = 答案:1.2 (58)6.8 × 5 = 答案:34 (59)8.7 × 0.3 = 答案:2.61 (60)5.6 × 6 = 答案:33.6 (61)5.5 × 0.7 = 答案:3.85 (62)9.6 × 0.3 = 答案:2.88 (63)9.6 × 7 = 答案:67.2 (64)8.3 × 3 = 答案:24.9 (65)9.5 × 0.5 = 答案:4.75 (66)5.5 × 9 = 答案:49.5 (67)1.9 × 9 = 答案:17.1 (68)2.2 × 7 = 答案:15.4 (69)3.8 × 0.9 = 答案:3.42 (70)1.8 × 0.7 = 答案:1.26 (71)4.6 × 0.2 = 答案:0.92 (72)1.3 × 0.2 = 答案:0.26 (73)4.3 × 0.9 = 答案:3.87 (74)1.4 × 2 = 答案:2.8 (75)7 × 5 = 答案:35 (76)2.5 × 7 = 答案:17.5 (77)6.4 × 0.4 = 答案:2.56 (78)6.3 × 5 = 答案:31.5 (79)3.1 × 4 = 答案:12.4 (80)5.8 × 0.7 = 答案:4.06 (81)1.2 × 8 = 答案:9.6 (82)6.5 × 0.5 = 答案:3.25 (83)3.9 × 0.9 = 答案:3.51 (84)9.3 × 3 = 答案:27.9 (85)2 × 2 = 答案:4 (86)3.7 × 5 = 答案:18.5 (87)1.1 × 3 = 答案:3.3 (88)6.5 × 5 = 答案:32.5 (89)2.7 × 0.8 = 答案:2.16 (90)8.4 × 8 = 答案:67.2 (91)4.2 × 0.8 = 答案:3.36 (92)6.9 × 2 = 答案:13.8 (93)6.6 × 2 = 答案:13.2 (94)9.5 × 0.8 = 答案:7.6 (95)6.6 × 0.7 = 答案:4.62 (96)1.7 × 0.5 = 答案:0.85 (97)6.9 × 9 = 答案:62.1 (98)8.4 × 6 = 答案:50.4 (99)9.4 × 0.5 = 答案:4.7 (100)8.4 × 0.5 = 答案:4.2 (1)5.6 × 8 = 答案:44.8 (2)3.9 × 5 = 答案:19.5 (3)5.4 × 0.4 = 答案:2.16 (4)7.3 × 0.2 = 答案:1.46 (5)9.4 × 8 = 答案:75.2 (6)3.8 × 0.3 = 答案:1.14 (7)8.6 × 0.4 = 答案:3.44 (8)7.3 × 4 = 答案:29.2 (9)4.8 × 0.4 = 答案:1.92 (10)1.3 × 4 = 答案:5.2 (11)7.3 × 8 = 答案:58.4 (12)8 × 4 = 答案:32 (13)3.2 × 6 = 答案:19.2 (14)4.7 × 0.3 = 答案:1.41 (15)4.6 × 0.9 = 答案:4.14 (16)9.9 × 4 = 答案:39.6 (17)8.2 × 0.5 = 答案:4.1 (18)8.2 × 0.5 = 答案:4.1 (19)5 × 0.8 = 答案:4 (20)5.7 × 9 = 答案:51.3 (21)3.9 × 5 = 答案:19.5 (22)7.3 × 2 = 答案:14.6 (23)5.3 × 3 = 答案:15.9 (24)6.7 × 0.2 = 答案:1.34 (25)4.3 × 0.5 = 答案:2.15 (26)4.7 × 0.4 = 答案:1.88 (27)2.4 × 5 = 答案:12 (28)7.3 × 0.3 = 答案:2.19 (29)3.8 × 0.9 = 答案:3.42 (30)7.3 × 4 = 答案:29.2 (31)5.1 × 0.7 = 答案:3.57 (32)9.8 × 2 = 答案:19.6 (33)8.3 × 0.7 = 答案:5.81 (34)4.3 × 0.6 = 答案:2.58 (35)9.5 × 0.3 = 答案:2.85 (36)9.9 × 5 = 答案:49.5 (37)3.4 × 2 = 答案:6.8 (38)2.9 × 4 = 答案:11.6 (39)1.1 × 6 = 答案:6.6 (40)2.1 × 5 = 答案:10.5 (41)9.1 × 0.8 = 答案:7.28 (42)9.7 × 0.3 = 答案:2.91 (43)9.6 × 0.5 = 答案:4.8 (44)5.1 × 0.6 = 答案:3.06 (45)5.5 × 8 = 答案:44 (46)9 × 8 = 答案:72 (47)5 × 4 = 答案:20 (48)4.1 × 5 = 答案:20.5 (49)1.4 × 0.3 = 答案:0.42 (50)2.4 × 9 = 答案:21.6 (51)5.1 × 7 = 答案:35.7 (52)7.9 × 5 = 答案:39.5 (53)4.1 × 9 = 答案:36.9 (54)1.6 × 2 = 答案:3.2 (55)6.7 × 0.8 = 答案:5.36 (56)8.9 × 0.7 = 答案:6.23 (57)6.2 × 0.2 = 答案:1.24 (58)2.6 × 7 = 答案:18.2 (59)6.8 × 0.6 = 答案:4.08 (60)5.6 × 9 = 答案:50.4 (61)9.8 × 0.8 = 答案:7.84 (62)9 × 9 = 答案:81 (63)3.8 × 7 = 答案:26.6 (64)2.5 × 6 = 答案:15 (65)1.7 × 5 = 答案:8.5 (66)4.6 × 0.7 = 答案:3.22 (67)8.9 × 3 = 答案:26.7 (68)7.9 × 0.6 = 答案:4.74 (69)6.3 × 4 = 答案:25.2 (70)2.9 × 0.3 = 答案:0.87 (71)4.6 × 8 = 答案:36.8 (72)1.5 × 2 = 答案:3 (73)6.9 × 0.7 = 答案:4.83 (74)5.8 × 6 = 答案:34.8 (75)3.4 × 0.5 = 答案:1.7 (76)1.9 × 2 = 答案:3.8 (77)8.3 × 0.4 = 答案:3.32 (78)7.4 × 6 = 答案:44.4 (79)4.5 × 3 = 答案:13.5 (80)5.9 × 4 = 答案:23.6 (81)8.9 × 0.2 = 答案:1.78 (82)4.9 × 8 = 答案:39.2 (83)7.5 × 2 = 答案:15 (84)1.5 × 7 = 答案:10.5 (85)8.3 × 0.4 = 答案:3.32 (86)6.1 × 0.6 = 答案:3.66 (87)3.7 × 0.5 = 答案:1.85 (88)7.4 × 0.5 = 答案:3.7 (89)1.3 × 0.7 = 答案:0.91 (90)3.5 × 0.7 = 答案:2.45 (91)9.9 × 0.2 = 答案:1.98 (92)2 × 7 = 答案:14 (93)4.4 × 0.8 = 答案:3.52 (94)8.5 × 4 = 答案:34 (95)9.8 × 8 = 答案:78.4 (96)9 × 9 = 答案:81 (97)2.7 × 8 = 答案:21.6 (98)1.6 × 0.3 = 答案:0.48 (99)5.7 × 3 = 答案:17.1 (100)7.5 × 5 = 答案:37.5 1)4.1 × 0.7 = 答案:2.87 (2)3.9 × 5 = 答案:19.5 (3)8.5 × 2 = 答案:17 (4)7.7 × 6 = 答案:46.2 (5)4 × 9 = 答案:36 (6)1.7 × 2 = 答案:3.4 (7)7.9 × 6 = 答案:47.4 (8)4.2 × 0.9 = 答案:3.78 (9)2.6 × 6 = 答案:15.6 (10)9.9 × 8 = 答案:79.2 (11)1.7 × 5 = 答案:8.5 (12)2.4 × 4 = 答案:9.6 (13)6 × 0.4 = 答案:2.4 (14)3.9 × 6 = 答案:23.4 (15)7 × 0.4 = 答案:2.8 (16)7.6 × 0.4 = 答案:3.04 (17)3.9 × 0.7 = 答案:2.73 (18)2.8 × 0.3 = 答案:0.84 (19)3 × 9 = 答案:27 (20)8.1 × 0.3 = 答案:2.43 (21)3.3 × 8 = 答案:26.4 (22)8.1 × 0.7 = 答案:5.67 (23)2.2 × 3 = 答案:6.6 (24)3 × 6 = 答案:18 (25)3.2 × 5 = 答案:16 (26)4.3 × 7 = 答案:30.1 (27)6.7 × 5 = 答案:33.5 (28)2.7 × 0.7 = 答案:1.89 (29)1.4 × 0.9 = 答案:1.26 (30)1.6 × 9 = 答案:14.4 (31)8 × 0.8 = 答案:6.4 (32)5.9 × 2 = 答案:11.8 (33)3.6 × 9 = 答案:32.4 (34)1.4 × 0.6 = 答案:0.84 (35)8.3 × 0.2 = 答案:1.66 (36)7 × 9 = 答案:63 (37)8.7 × 8 = 答案:69.6 (38)2.9 × 3 = 答案:8.7 (39)6.7 × 0.2 = 答案:1.34 (40)1.6 × 0.8 = 答案:1.28 (41)9.6 × 2 = 答案:19.2 (42)5.4 × 5 = 答案:27 (43)5.8 × 0.7 = 答案:4.06 (44)3.7 × 0.2 = 答案:0.74 (45)8.7 × 0.6 = 答案:5.22 (46)2.1 × 0.4 = 答案:0.84 (47)1.6 × 5 = 答案:8 (48)4.6 × 3 = 答案:13.8 (49)9.5 × 0.6 = 答案:5.7 (50)5.6 × 9 = 答案:50.4 (51)5.9 × 0.3 = 答案:1.77 (52)9 × 2 = 答案:18 (53)9 × 4 = 答案:36 (54)4.5 × 3 = 答案:13.5 (55)4.4 × 6 = 答案:26.4 (56)5.5 × 4 = 答案:22 (57)8.6 × 6 = 答案:51.6 (58)6.6 × 0.2 = 答案:1.32 (59)8.7 × 0.6 = 答案:5.22 (60)2.4 × 0.6 = 答案:1.44 (61)2.1 × 0.2 = 答案:0.42 (62)4.4 × 0.8 = 答案:3.52 (63)7.1 × 9 = 答案:63.9 (64)3.8 × 3 = 答案:11.4 (65)8.9 × 7 = 答案:62.3 (66)7.1 × 0.2 = 答案:1.42 (67)3.9 × 0.5 = 答案:1.95 (68)1.6 × 0.7 = 答案:1.12 (69)3.9 × 0.9 = 答案:3.51 (70)7.7 × 2 = 答案:15.4 (71)7 × 0.7 = 答案:4.9 (72)8.3 × 4 = 答案:33.2 (73)5.1 × 0.2 = 答案:1.02 (74)9.2 × 0.8 = 答案:7.36 (75)1.3 × 6 = 答案:7.8 (76)6.8 × 7 = 答案:47.6 (77)2.2 × 3 = 答案:6.6 (78)3.2 × 8 = 答案:25.6 (79)6.8 × 0.2 = 答案:1.36 (80)4.7 × 0.2 = 答案:0.94 (81)6.7 × 9 = 答案:60.3 (82)9.9 × 7 = 答案:69.3 (83)3.3 × 0.2 = 答案:0.66 (84)2.3 × 3 = 答案:6.9 (85)8.3 × 0.5 = 答案:4.15 (86)8.5 × 0.2 = 答案:1.7 (87)1.7 × 0.7 = 答案:1.19 (88)9 × 0.6 = 答案:5.4 (89)9.9 × 5 = 答案:49.5 (90)7.4 × 0.3 = 答案:2.22 (91)7.7 × 2 = 答案:15.4 (92)9.9 × 0.4 = 答案:3.96 (93)5 × 0.2 = 答案:1 (94)8.5 × 5 = 答案:42.5 (95)9.1 × 9 = 答案:81.9 (96)5.6 × 0.5 = 答案:2.8 (97)5 × 8 = 答案:40 (98)3.1 × 0.4 = 答案:1.24 (99)6.8 × 8 = 答案:54.4 (100)1.9 × 0.2 = 答案:0.38
- FinCloud
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如下图:
口算:一边心算一边口说地运算。口算就是用脑计算,用口头叙述来记忆当时的结果。这种方法用于速算,常练有助于智力的提高。也成为如今的主流的计算方法。也叫“心算”。
数学教学方法之一,一种只凭思维及语言活动不借任何工具的计算方法。它能培养学生快速的计算,发展学生的注意、记忆和思维能力。口算熟练后有助于笔算,且便于在日常生活中应用。
- 好投
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17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
- 北有云溪
-
小学四年级数学口算题:
1、45+15×6= 135
2、250÷5×8=400
3、6×5÷2×4=60
4、30×3+8=98
5、400÷4+20×5= 200
6、10+12÷3+20=34
7、(80÷20+80)÷4=21
8、70+(100-10×5)=120
9、360÷40= 9
10、40×20= 800
11、80-25= 55
12、70+45=115
13、90×2= 180
14、16×6= 96
15、300×6= 1800
16、540÷9=60
17、30×20= 600
18、400÷4= 100
19、350-80= 270
20、160+70=230
21、18-64÷8= 10
22、42÷6+20=27
23、40-5×7= 5
24、80+60÷3=100
25、41+18÷2= 50
26、75-11×5= 20
27、42+7-29= 20
28、5600÷80=70
29、25×16= 400
30、120×25= 3000
31、36×11= 396
32、1025÷25=41
33、336+70= 406
34、25×9×4= 900
35、200-33×3= 101
36、3020-1010=2010
37、12×50= 600
38、25×8= 200
39、23×11= 253
40、125÷25=5
41、4200-2200=2000
42、220+80= 300
43、20×8×5= 800
44、600-3×200=0
45、20+20÷2= 30
46、35-25÷5= 30
47、36+8-40= 4
48、2800÷40=70
49、98÷14 = 7
50、96÷24 = 4
51、56÷14 =4
52、65÷13 = 5
53、75÷15 = 5
54、120÷24 =5
55、200÷25 = 8
56、800÷16 = 50
57、840÷21 =40
58、560÷14 = 40
59、390÷13 = 30
60、600÷15 =40
61、72÷24 = 3
62、85÷17 = 5
63、90÷15 =6
64、96÷16 = 6
65、78÷26 = 4
66、51÷17 =3
67、80÷40 = 2
68、100÷20 = 5
69、100÷4 =25
70、240÷40 = 6
71、920÷4 = 230
72、300÷60=5
73、64÷2 = 32
74、64÷4 = 16
75、50÷5 =10
76、60÷8 = 7、5
77、96÷4 = 24
78、90÷6 =15
79、400+80 = 480
80、400-80 = 320
81、40×80 =3200
82、400÷80 = 5
83、48÷16 = 3
84、96÷24 =4
85、160×5= 800
86、4×250= 1000
87、0×518= 0
88、10×76= 760
89、36×10=360
90、15×6= 90
91、24×3= 72
92、5×18= 90
93、26×4= 74
94、7×15=105
95、32×30= 960
96、40×15= 600
97、60×12= 720
98、23×30= 690
99、30×50=1500
100、0.5×700=350
- 肖振
-
1) 103÷73-159-57=
(2) 83×91÷131+38=
(3) 197-46+67-13=
(4) 38÷54×126-52=
(5) 192+52×136÷66=
(6) 123-47+159-16=
(7) 164×23-126+74=
(8) 117+21+17-19=
(9) 7÷9×161+93=
(10) 93×35-128+36=
(11) 86×9×187×99=
(12) 68÷83-14÷54=
(13) 80÷93+15-17=
(14) 51+20÷143-90=
(15) 42+31×180+42=
(16) 96÷82-173×25=
(17) 42÷12×180-66=
(18) 152-18÷10×19=
(19) 16-69÷137×5=
(20) 109÷9-51÷45=
(21) 23+15+37÷18=
(22) 52+95÷37÷12=
(23) 88×51+188÷40=
(24) 112×3-103×82=
(25) 56-7-66-1=
(26) 109×66-29×10=
(27) 39+55-166-52=
(28) 11÷55÷86÷51=
(29) 71-42+50×92=
(30) 177÷97-92÷4=
(31) 151×9÷1+93=
(32) 13×7÷56×18=
(33) 99-21+70-22=
(34) 14×5÷33-34=
(35) 4÷90-125+67=
(36) 24-48-170÷97=
(37) 73÷98-106+66=
(38) 76+53÷158+91=
(39) 81-28÷69+27=
(40) 50+20×83÷56=
(41) 23÷78-40×54=
(42) 118-58+73-17=
(43) 161÷98÷64+75=
(44) 198×12÷152-9=
(45) 80×12÷54-64=
(46) 198-85×85-1=
(47) 128+33÷42+66=
(48) 73×66+33-21=
(49) 75×3÷28+24=
(50) 71-51+199-83=
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21 回答者: 盗号全家4光 | 十级 | 2011-7-11 10:19
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
- 大鱼炖火锅
-
(1) 103÷73-159-57=
(2) 83×91÷131+38=
(3) 197-46+67-13=
(4) 38÷54×126-52=
(5) 192+52×136÷66=
(6) 123-47+159-16=
(7) 164×23-126+74=
(8) 117+21+17-19=
(9) 7÷9×161+93=
(10) 93×35-128+36=
(11) 86×9×187×99=
(12) 68÷83-14÷54=
(13) 80÷93+15-17=
(14) 51+20÷143-90=
(15) 42+31×180+42=
(16) 96÷82-173×25=
(17) 42÷12×180-66=
(18) 152-18÷10×19=
(19) 16-69÷137×5=
(20) 109÷9-51÷45=
(21) 23+15+37÷18=
(22) 52+95÷37÷12=
(23) 88×51+188÷40=
(24) 112×3-103×82=
(25) 56-7-66-1=
(26) 109×66-29×10=
(27) 39+55-166-52=
(28) 11÷55÷86÷51=
(29) 71-42+50×92=
(30) 177÷97-92÷4=
(31) 151×9÷1+93=
(32) 13×7÷56×18=
(33) 99-21+70-22=
(34) 14×5÷33-34=
(35) 4÷90-125+67=
(36) 24-48-170÷97=
(37) 73÷98-106+66=
(38) 76+53÷158+91=
(39) 81-28÷69+27=
(40) 50+20×83÷56=
(41) 23÷78-40×54=
(42) 118-58+73-17=
(43) 161÷98÷64+75=
(44) 198×12÷152-9=
(45) 80×12÷54-64=
(46) 198-85×85-1=
(47) 128+33÷42+66=
(48) 73×66+33-21=
(49) 75×3÷28+24=
(50) 71-51+199-83=
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
- 苏萦
-
640÷80=
15×5=
23×3=
12×2×5=
480÷80=
16×5=
27×3=
90÷15=
48÷4=
640÷16=
39÷3=
24×20=
32×3=
48÷16=
12×8=
27×3=
56÷14=
24÷8=
14×2=
83-45=
560÷80=
96÷24=
40÷20=
40×30=
37+26=
76-39=
605+59=
30×23=
12×8=
27+32=
48+27=
4500×20=
73+15 =
120×600 =
200×360=
6800×400=
280+270=
4×2500=
6000÷40=
5×1280=
310-70=
400×14=
470+180=
1000÷25=
160×600=
20×420=
290×300=
8100÷300=
7600÷200=
7600÷400=
680+270=
980÷14=
4200÷30=
6×1300=
1300×50=
200×48=
930-660=
530+280=
9200÷400=
840÷21=
180×500=
8000÷500 =
1900÷20=
200×160=
8700÷300=
300×330=
3×1400=
7000÷14=
600÷12=
9600÷80=
140×300=
8800÷40=
9600÷800=
750-290=
5×490=
760×20=
7500÷500=
370×200=
650÷13=
8600-4200=
240×4=
640÷80=
15×10=
12×11=
160×30=
220×40=
104×5=
4500÷50=
120×2=
90÷30=
270÷30=
270×30=
84÷21=
76÷9=
66÷7=
100-54=
123+15=
360÷4=
55÷5=
32×6= 7000÷70=
200÷40=
180÷30=
240÷40=
35×2=
140×7=
13×6=
280×3=
350×2=
50×11=
250×6=
7200+900=
410-201=
125×8=
48×20=
6600÷600=
390+140=
11×80=
24×50=
3600÷400= 4000÷50=
530-70=
420-90=
9600÷30=
7×700=
203+98=
5600÷700=
4800÷12=
3500÷7=
370+560=
520+490=
450-90=
80+330=
70×700=
7000÷70=
4000÷80=
2400÷200=
420-90=
170+320=
520-260=
910-190=
35×200=
22×200=
8800÷400=
9300÷300=
6×300=
1800÷200=
9300÷30=
280÷40=
304+199=
390÷26=
1250÷50=
21×40=
6600÷220=
760-198=
660-220=
5000÷50=
100×91=
753-299=
没有答案不要建议!!!!!
- 可可科科
-
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