题目内容
用竖式计算.(带☆的要验算)
| 70-37.6 | 64.06+7.28 | ☆14.25+5.35 | ☆9.22-4.76 |
| 4.8+2.6+5.2 | 15.6-4.7-5.3 | 3.48+9.6+16.52+10.4. |
70-37.6=32.4

64.06+7.28=71.34

☆14.25+5.35=19.6

验算:

☆9.22-4.76=4.46

验算:

4.8+2.6+5.2
=4.8+5.2+2.6
=10+2.6
=12.6;
15.6-4.7-5.3
=15.6-(4.7+5.3)
=15.6-10
=5.6;
3.48+9.6+16.52+10.4
=(3.48+16.52)+(9.6+10.4)
=20+20
=40.
64.06+7.28=71.34
☆14.25+5.35=19.6
验算:
☆9.22-4.76=4.46
验算:
4.8+2.6+5.2
=4.8+5.2+2.6
=10+2.6
=12.6;
15.6-4.7-5.3
=15.6-(4.7+5.3)
=15.6-10
=5.6;
3.48+9.6+16.52+10.4
=(3.48+16.52)+(9.6+10.4)
=20+20
=40.
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