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一、口算。
$560÷20=$
$78+320=$
$330÷33=$
$102×7=$
$525÷25=$
$416÷8=$
$4×160=$
$360-140=$
$560÷20=$
28
$10×37=$370
$56÷28=$2
$78+320=$
398
$57÷19=$3
$102×8=$816
$330÷33=$
10
$65×40=$2600
$99+38=$137
$102×7=$
714
$840÷20=$42
$201×5=$1005
$525÷25=$
21
$79×50=$3950
$87-26=$61
$416÷8=$
52
$84-25=$59
$70×24=$1680
$4×160=$
640
$475÷5=$95
$165÷3=$55
$360-140=$
220
$13×60=$780
$550÷11=$50
答案
28 370 2 398 3 816 10 2600 137 714 42 1005 21 3950 61 52 59 1680 640 95 55 220 780 50
二、用竖式计算。
$85÷29$ $338÷41$ $870÷48$
$369÷16$ $537÷52$ $723÷45$
$85÷29$ $338÷41$ $870÷48$
$369÷16$ $537÷52$ $723÷45$
答案
2······27 8······10 18······6 23······1 10······17 16······3
解析
```
2
29)85
58
---
27
```
```
8
41)338
328
---
10
```
```
18
48)870
864
---
6
```
```
23
16)369
32
---
49
48
---
1
```
```
10
52)537
520
---
17
```
```
16
45)723
720
---
3
```
2······27
8······10
18······6
23······1
10······17
16······3
2
29)85
58
---
27
```
```
8
41)338
328
---
10
```
```
18
48)870
864
---
6
```
```
23
16)369
32
---
49
48
---
1
```
```
10
52)537
520
---
17
```
```
16
45)723
720
---
3
```
2······27
8······10
18······6
23······1
10······17
16······3
