Question

五年级下册数学口算题及答案怎么办呢?

Answer 1

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