题目内容
用简便方法计算。
|
| (1)原式=5.6+24.4+(13.38+9.62) =30+23 =53 |
(2)原式=28-(13.31+6.69) =28-20 =8 |
| (3)原式=324.08-24.08-13.6 =300-13.6 =286.4 |
(4)原式= 43.06+6.94-4.56 = 50-4.56 = 45.44 |
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题目内容
用简便方法计算。
|
| (1)原式=5.6+24.4+(13.38+9.62) =30+23 =53 |
(2)原式=28-(13.31+6.69) =28-20 =8 |
| (3)原式=324.08-24.08-13.6 =300-13.6 =286.4 |
(4)原式= 43.06+6.94-4.56 = 50-4.56 = 45.44 |