2026年小学数学计算10分钟五年级上册人教版第77页答案
一、口算。(每题1分,共28分)
0.7 + 1.13 =
9 ÷ 4.5 =
40 × 0.4 =
18.6 - 6.6 =
0.14 × 0.4 =
9.6 ÷ 0.2 =
0.08 + 0.6 =
4.96 ÷ 8 =
3.4 ÷ 0.2 =
0.8 × 0.51 =
3.57 ÷ 0.7 =
2.6 - 0.02 =
0.05 × 3 =
0.24 ÷ 0.1 =
0.63 × 0.2 =
0.64 ÷ 0.4 =
4.8 ÷ 1.2 =
1.2 - 0.7 =
0.72 ÷ 90 =
0.13 + 0.8 =
0.34 × 50 =
6.24 ÷ 3 =
3.8 × 0.02 =
9.2 ÷ 4 =
1.1 × 1.2 =
2.8 × 0.25 =
0.9 - 0.81 =
0.56 ÷ 1.4 =

答案

1. 0.7+1.13=1.83
2. 9÷4.5=2
3. 40×0.4=16
4. 18.6-6.6=12
5. 0.14×0.4=0.056
6. 9.6÷0.2=48
7. 0.08+0.6=0.68
8. 4.96÷8=0.62
9. 3.4÷0.2=17
10. 0.8×0.51=0.408
11. 3.57÷0.7=5.1
12. 2.6-0.02=2.58
13. 0.05×3=0.15
14. 0.24÷0.1=2.4
15. 0.63×0.2=0.126
16. 0.64÷0.4=1.6
17. 4.8÷1.2=4
18. 1.2-0.7=0.5
19. 0.72÷90=0.008
20. 0.13+0.8=0.93
21. 0.34×50=17
22. 6.24÷3=2.08
23. 3.8×0.02=0.076
24. 9.2÷4=2.3
25. 1.1×1.2=1.32
26. 2.8×0.25=0.7
27. 0.9-0.81=0.09
28. 0.56÷1.4=0.4
二、用竖式计算。(每题3分,共18分)
2.15×0.28=
0.943÷4.1=
5.68×8.5≈
(得数保留一位小数)
0.024÷1.6=
5.12÷32=
1.24÷0.24≈
(得数保留两位小数)

答案

1. 2.15×0.28=0.602
2. 0.943÷4.1=0.23
3. 5.68×8.5≈48.3(得数保留一位小数)
4. 0.024÷1.6=0.015
5. 5.12÷32=0.16
6. 1.24÷0.24≈5.17(得数保留两位小数)
三、计算下面各题,怎样简便就怎样计算。(每题4分,共24分)
7.2×1.25
1.4×999+1.4
68.8-18.7÷3.4+6.7
37.8÷1.8÷0.7
17.1÷0.6+12.9÷0.6
4.5÷[0.84÷(1.2−1.13)]

答案

1. 7.2×1.25=9
2. 1.4×999+1.4=1400
3. 68.8-18.7÷3.4+6.7=70
4. 37.8÷1.8÷0.7=30
5. 17.1÷0.6+12.9÷0.6=50
6. 4.5÷[0.84÷(1.2−1.13)]=0.375