
一.小数除法(共40小题)
1.竖式计算(除不尽的,商保留两位小数。)
| 10.08÷3.6= | 9.538÷1.9= | 8.5÷5.6≈ | 2.736÷0.76= |
| 9.36÷5.2 | 16.1÷23 | 32.8÷19 |
| 72.9÷0.9 | 8.14÷0.3 | 41.6÷32 |
| 91.2÷3.8= | 32.8÷19(保留两位小数) | 72.9÷0.9= | △41.6÷32 |
| 5.6÷0.8= | 3.6÷0.4= | 0.72÷0.06= | 100÷0.25= |
| 5÷0.25= | 4.5×0.07= | 0.76÷0.4= | 20÷0.2= |
| 6.54﹣2.1= | 5.9+4.2= | 2.3÷100= | 6.3÷0.09= |
| 1.2÷0.3= | 10.4÷0.1= | 0.72÷0.06= |
| 100÷0.25= | 0.3×0.3= | 6.3÷0.09= |
| ※270.6÷1.5 | 3.45×0.36 |
| 91.2÷57 | 1.5÷0.45(用循环小数表示) |
| 14.03÷6.1 | △0.58×2.5 | △2.52÷0.72 |
5.46÷9.1=
43.5÷0.29=
9.直接写得数.
| 3.2÷0.1= | 0.22+1.8= | 10﹣2.05= | 3.5×0.4= |
| 4÷0.25= | 0÷19.8= | 0.2×5.5= | 0.6×0.6= |
| (1)6.8÷0.17= | (2)100÷0.8= | (3)72÷0.06= |
| (4)73.73÷0.73= | (5)9.8÷14= | (6)79.7÷21≈【估算】 |
(1)6.48÷14.4=【验算】
(2)10.84÷36=【商用循环小数表示】
12.直接写得数.
| 6.4÷0.08= | 0.65÷6.5= | 3.7÷10= | 7.5÷2.5= |
| 8÷40= | 6.5÷1.25= | 0.4×0.3= | 1÷8= |
70÷5.6=
*42÷12=
0.75÷1.5=
14.列竖式计算.
1.26÷18=
9.86÷14.5=
8.976÷0.88=(计算后验算)
5.75÷15≈(保留两位小数)
15.竖式计算,带☆的要验算,除不尽的结果保留两位小数.
9.62÷3.7=
☆0.608÷1.6=
48÷5.4≈
16.列竖式计算,并验算.
0.14÷0.08=
28.5÷0.75=
17.直接写出得数.
| 2.1÷0.7= | 0.65÷13= | 6.3÷7= | 2.5÷5= | 0.63÷9= | 0.125×8= | 3÷10= |
25.2÷4=
4.86÷8.1=
★3.06÷1.5=验算:
19.用竖式计算.
22.8÷4=
46.69÷2.3=
6.43÷11≈(保留两位)
20.列竖式计算.(带“*”的要验算)
2.1÷0.56=
*15.9÷15=
21.直接写出得数.
| 4.8÷0.8= | 0.5×0.2= | 0÷1.98= | 2.4+4= | 9.8÷14= |
| 1÷0.25= | 7﹣0.35= | 0.34×4= | 0.1÷0.01= | 1﹣0.08= |
(1)36.48÷3.8=
(2)9.25×6.4=
23.直接写出各题得数.
| 100×0.9= | 0.2×0.5= | 7.5÷0.5= | 0.45÷45= | M×M= |
| 12.5×8= | 1.2÷0.3= | 3.6÷0.09= | 200×0.04= | x﹣0.74x= |
65÷26=
1.36×0.05=
25.列竖式计算,带※的要验算.
5.778÷5.4=
28.56÷51=
※14÷5.6=
26.列竖式计算.
1.55÷3.7≈(保留两位小数)
★2.6×4.3=验算:
27.用竖式计算.
51.2÷8
11.9÷7.2(结果保留两位小数)
★75.6÷0.42
28.列竖式计算,带☆结果用循环小数表示.
6.3÷0.56=
☆37.52÷1.1=
20÷2.3≈(精确到百分位)
29.计算下面各题,得数保留两位小数.
5.6÷6≈
2.86×0.03≈
30.列竖式计算.(带“★”的要验算)
5.768÷0.56=
★0.21÷0.012
1.9÷0.63(得数保留两位小数)
31.计算下面各题,除不尽的先用循环小数表示所得的商,再保留两位小数写出它的近似值。
| 3.7÷0.5 | 1.3÷1.1 | 23÷3.3 |
| 2.5×0.42= | 4.026÷13.2= | *3.195×2.5≈ | *5.26÷1.6≈ |
| 1.61÷23= | 5.4÷0.75= | ★5.76÷1.8= |
①7.4×0.28
②7.1÷0.25
③*246.4÷13
35.用竖式计算.
91.2÷3.8
0.94×25=
8.4÷0.48=
36.用竖式计算.
8.4÷0.56=
0.32÷2.2=
(商用循环小数表示)
45.4÷15≈
(得数保留一位小数)
37.直接写出得数.
| 2.8÷2= | 2.6÷13= | 0.4÷8= | 8.8÷0.4= |
| 5.9÷0.59= | 1.55÷0.5= | 0.56÷14= | 40.08÷8= |
| 5.1÷3= | 0.57×6= | 25.7÷100= |
| 425+37= | 12.5×0.8= | 90.2×100= |
| 0.096÷0.03= | 84÷4.2= | 0÷0.25= | 1÷0.01= | 1.25×8= |
| 1.9+2.4+7.6= | 100×0.756= | 1﹣0.03= | 1.5×6= | 0.4×9÷0.4×9= |
| (1)2.8÷100 | (2)2.6÷0.02= | (3)5.7÷1.9 | (4)9.6÷6= |
| (5)7÷5= | (6)0.48÷0.16= | (7)0.24×5= | (8)0÷0.05 |
《一 小数除法》
参与试题解析
一.小数除法(共40小题)
1.【解答】解:10.08÷3.6=2.8
9.538÷1.9=5.02
8.5÷5.6≈1.52
2.736÷0.76=3.6
2.【解答】解:9.36÷5.2=1.8
16.1÷23=0.7
32.8÷19≈1.73
72.9÷0.9=81
8.14÷0.3≈27.13
41.6÷32=1.3
3.【解答】解:91.2÷3.8=24
32.8÷19≈1.73
72.9÷0.9=81
△41.6÷32=1.3
4.【解答】解:
| 5.6÷0.8=7 | 3.6÷0.4=9 | 0.72÷0.06=12 | 100÷0.25=400 |
| 5÷0.25=20 | 4.5×0.07=0.315 | 0.76÷0.4=1.9 | 20÷0.2=100 |
| 6.54﹣2.1=4.44 | 5.9+4.2=10.1 | 2.3÷100=0.023 | 6.3÷0.09=70 |
| 1.2÷0.3=4 | 10.4÷0.1=104 | 0.72÷0.06=12 |
| 100÷0.25=400 | 0.3×0.3=0.09 | 6.3÷0.09=70 |
3.45×0.36=1.242
91.2÷57=1.6
1.5÷0.45=3.
7.【解答】解:14.03÷6.1=2.3
△0.58×2.5=1.45
验算:
△2.52÷0.72=3.5
验算:
8.【解答】解:5.46÷9.1=0.6
验算:
43.5÷0.29=150
验算:
9.【解答】解:
| 3.2÷0.1=32 | 0.22+1.8=2.02 | 10﹣2.05=7.95 | 3.5×0.4=1.4 |
| 4÷0.25=16 | 0÷19.8=0 | 0.2×5.5=1.1 | 0.6×0.6=0.36 |
| (1)6.8÷0.17=40 | (2)100÷0.8=125 | (3)72÷0.06=1200 |
| (4)73.73÷0.73=101 | (5)9.8÷14=0.7 | (6)79.7÷21≈4 |
验算:
(2)10.84÷36=0.30
12.【解答】解:
| 6.4÷0.08=80 | 0.65÷6.5=0.1 | 3.7÷10=0.37 | 7.5÷2.5=3 |
| 8÷40=0.2 | 6.5÷1.25=5.2 | 0.4×0.3=0.12 | 1÷8=0.125 |
*42÷12=3.5
0.75÷1.5=0.5
14.【解答】解:1.26÷18=0.07
9.86÷14.5=0.68
8.976÷0.88=10.2
验算:
5.75÷15≈0.38
15.【解答】解:9.62÷3.7=2.6
☆0.608÷1.6=0.38
验算:
48÷5.4≈8.
16.【解答】解:0.14÷0.08=1.75
验算:
28.5÷0.75=38
验算:
17.【解答】解:
| 2.1÷0.7=3 | 0.65÷13=0.05 | 6.3÷7=0.9 | 2.5÷5=0.5 | 0.63÷9=0.07 | 0.125×8=1 | 3÷10=0.3 |
4.86÷8.1=0.6
★3.06÷1.5=2.04
验算:
19.【解答】解:22.8÷4=5.7
46.69÷2.3=20.3
6.43÷11≈0.58
20.【解答】解:2.1÷0.56=3.75
*15.9÷15=1.06
验算:
21.【解答】解:
| 4.8÷0.8=6 | 0.5×0.2=0.1 | 0÷1.98=0 | 2.4+4=6.4 | 9.8÷14=0.7 |
| 1÷0.25=4 | 7﹣0.35=6.65 | 0.34×4=1.36 | 0.1÷0.01=10 | 1﹣0.08=0.92 |
(2)9.25×6.4=59.2
23.【解答】解:
| 100×0.9=90 | 0.2×0.5=0.1 | 7.5÷0.5=15 | 0.45÷45=0.01 | M×M=M2 |
| 12.5×8=100 | 1.2÷0.3=4 | 3.6÷0.09=40 | 200×0.04=8 | x﹣0.74x=0.26x |
1.36×0.05=0.068
25.【解答】解:5.778÷5.4=1.07
28.56÷51=0.56
※14÷5.6=2.5
26.【解答】解:1.55÷3.7≈0.42
★2.6×4.3=11.18
27.【解答】解:51.2÷8=6.4
11.9÷7.2≈1.65
★75.6÷0.42=180
28.【解答】解:6.3÷0.56=11.25
☆37.52÷1.1=34.1
20÷2.3≈8.70
29.【解答】解:5.6÷6≈0.93
2.86×0.03≈0.09
30.【解答】解:5.768÷0.56=10.3
0.21÷0.012=17.5
1.9÷0.63≈3.02
31.【解答】解:3.7÷0.5=7.4
1.3÷1.1=1.≈1.18
23÷3.3=6.≈6.97
32.【解答】解:2.5×0.42=1.05
4.026÷13.2=0.305
*3.195×2.5≈7.99
*5.26÷1.6≈3.29
33.【解答】解:1.61÷23=0.07
5.4÷0.75=7.2
★5.76÷1.8=3.2
验算:
34.【解答】解:①7.4×0.28=2.072
②7.1÷0.25=28.4
③246.4÷13≈18.95
35.【解答】解:91.2÷3.8=24
0.94×25=23.5
8.4÷0.48=17.5
36.【解答】解:8.4÷0.56=15
0.32÷2.2=0.1
45.4÷15≈3.0
37.【解答】解:
| 2.8÷2=1.4 | 2.6÷13=0.2 | 0.4÷8=0.05 | 8.8÷0.4=22 |
| 5.9÷0.59=10 | 1.55÷0.5=3.1 | 0.56÷14=0.04 | 40.08÷8=5.01 |
| 5.1÷3=1.7 | 0.57×6=3.42 | 25.7÷100=0.257 |
| 425+37=462 | 12.5×0.8=10 | 90.2×100=9020 |
| 0.096÷0.03=3.2 | 84÷4.2=20 | 0÷0.25=0 | 1÷0.01=100 | 1.25×8=10 |
| 1.9+2.4+7.6=11.9 | 100×0.756=75.6 | 1﹣0.03=0.97 | 1.5×6=9 | 0.4×9÷0.4×9=81 |
| (1)2.8÷100=0.028 | (2)2.6÷0.02=130 | (3)5.7÷1.9=3 | (4)9.6÷6=1.6 |
| (5)7÷5=1.4 | (6)0.48÷0.16=3 | (7)0.24×5=1.2 | (8)0÷0.05=0 |
