题目内容
计算
| 30.8÷[14-(9.85+1.07)] | [0.15+(2.44-1.8)]×20. |
(1)30.8÷[14-(9.85+1.07)],
=30.8÷[14-10.92],
=30.8÷3.08,
=10;
(2)[0.15+(2.44-1.8)]×20,
=[0.15+0.64]×20,
=0.79×20,
=15.8.
=30.8÷[14-10.92],
=30.8÷3.08,
=10;
(2)[0.15+(2.44-1.8)]×20,
=[0.15+0.64]×20,
=0.79×20,
=15.8.
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