题目内容
做表中的乘法题,尽可能灵活地计算.
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答案:98,0.98,9.8,0.098;5.6,0.056,0.56,0.0056;50.4,0.504,5.04,0.0504;148.4,1.484,14.84,0.1484;302.4,3.024,30.24,0.3024
解析:
解析:
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(1)98 ,0.98,9.8,0.098(2)5.6 ,0.056,0.56,0.0056(3)50.4 ,0.504,5.04,0.0504(4)148.4 ,1.484,14.84,0.1484(5)302.4 ,3.024,30.24,0.3024 |
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做表中的乘法题(每组题只需做一次笔算,其他的题通过小数点移位来解决).
| × | 6 | 0.6 | 7.2 | 1.2 | 3.6 |
| 13 | |||||
| 1.3 | |||||
| 0.13 | |||||
| 0.013 |