题目内容
用竖式计算并验算.
| 7.56+27.84= | 20.04-14.67= |
7.56+27.84=35.4;
7.56
;
验算:
27.84
;
20.04-14.67=5.37;
20.04
;
验算:
14.67
.
7.56
| +27.84 |
| 36.40 |
验算:
27.84
| +7.56 |
| 35.40 |
20.04-14.67=5.37;
20.04
| -14.67 |
| 5.37 |
验算:
14.67
| +5.37 |
| 20.04 |
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