一、填一填,算一算。
$45 - 27 = $

$45 - 27 = $
答案
二、
54 - 30 = 80 - 20 = 70 - 40 =
24 - 5 = 60 - 6 = 30 - 3 =
54 - 35 = 80 - 26 = 70 - 43 =
54 - 30 = 80 - 20 = 70 - 40 =
24 - 5 = 60 - 6 = 30 - 3 =
54 - 35 = 80 - 26 = 70 - 43 =
答案
| $54 - 30 = 24$ | $80 - 20 = 60$ | $70 - 40 = 30$ |
| --- | --- | --- |
| $24 - 5 = 19$ | $60 - 6 = 54$ | $30 - 3 = 27$ |
| $54 - 35 = 19$ | $80 - 26 = 54$ | $70 - 43 = 27$ |
| --- | --- | --- |
| $24 - 5 = 19$ | $60 - 6 = 54$ | $30 - 3 = 27$ |
| $54 - 35 = 19$ | $80 - 26 = 54$ | $70 - 43 = 27$ |
三、先说说得数是几十多,再计算。
$98 - 19 = $$ $$47 - 38 = $$ $$75 - 36 = $
$45 - 28 = $$ $$70 - 35 = $$ $$56 - 35 = $
$98 - 19 = $$ $$47 - 38 = $$ $$75 - 36 = $
$45 - 28 = $$ $$70 - 35 = $$ $$56 - 35 = $
答案
98 - 19
得数是七十多
```
98
19
----
79
```
47 - 38
得数是一十多
```
47
38
----
9
```
75 - 36
得数是三十多
```
75
36
----
39
```
45 - 28
得数是一十多
```
45
28
----
17
```
70 - 35
得数是三十多
```
70
35
----
35
```
56 - 35
得数是二十多
```
56
35
----
21
```
得数是七十多
```
98
19
----
79
```
47 - 38
得数是一十多
```
47
38
----
9
```
75 - 36
得数是三十多
```
75
36
----
39
```
45 - 28
得数是一十多
```
45
28
----
17
```
70 - 35
得数是三十多
```
70
35
----
35
```
56 - 35
得数是二十多
```
56
35
----
21
```
四、有一包椰子糖,康康分得50块,丽丽分得38块。康康比丽丽多分得多少块?
答案
50-38=12(块)
答:康康比丽丽多分得12块。
答:康康比丽丽多分得12块。
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