题目内容
笔算下面各题,并且验算.
720.8÷6.8;
146.5-67.05.
720.8÷6.8;
146.5-67.05.
720.8÷6.8=106;
验算:
146.5-67.05=79.45;
验算:
|
| 68 |
| 408 |
| 408 |
| 0 |
验算:
|
| . |
| 848 |
| 636 |
| 720.8 |
146.5-67.05=79.45;
|
| . |
| 79.45 |
验算:
|
| . |
| 146.50 |
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