题目内容
用竖式计算并验算.
122-nn.9=
2.l8×1.5=
1.44÷18=
122-nn.9=
2.l8×1.5=
1.44÷18=
n00-00.n=66.n;
n00
;
验算:
00.n
;
0.28×n.5=0.42;
0.2 8
;
验算:
n.5
;
n.44÷n8=0.08;
0.08
n8
;
验算:
n8
.
n00
| -00.n |
| 66.n |
验算:
00.n
| +66.n |
| n00.0 |
0.28×n.5=0.42;
0.2 8
| ×n.5 |
| n40 |
| 28 |
| 0.420 |
验算:
n.5
| ×0.28 |
| n20 |
| 00 |
| 0.420 |
n.44÷n8=0.08;
0.08
n8
| n.44 |
| n44 |
| 0 |
验算:
n8
| ×0.08 |
| n.44 |
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