题目内容
【题目】用简便方法计算.
15﹣0.3= 6﹣0.5= 3.9+12.1= 2.13+14= 0.91+1.25=
10﹣0.76= 3.99﹣0.9= 0.567+4.44= 0.37+0.6= 7.46+2.54=
1﹣0.08= 45.9+1= 6.87﹣3.25= 0.25+0.75= 0.78+0.22=
6.1﹣5.7=
【答案】14.7,5.5,16,16.13,2.16,9.24,3.09,5.007,0.97,10,0.92,46.9,3.62,1,1,0.4
【解析】
试题分析:根据小数加减乘除的计算方法进行计算.
解:15﹣0.3=14.7, 6﹣0.5=5.5, 3.9+12.1=16, 2.13+14=16.13, 0.91+1.25=2.16,
10﹣0.76=9.24, 3.99﹣0.9=3.09, 0.567+4.44=5.007, 0.37+0.6=0.97, 7.46+2.54=10,
1﹣0.08=0.92, 45.9+1=46.9, 6.87﹣3.25=3.62, 0.25+0.75=1, 0.78+0.22=1,
6.1﹣5.7=0.4.
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【题目】怎样算简便就怎样算.
6.24÷4+3.76×0.25 | 16.2×9.9+1.62 | 7.75×[20÷(3.24﹣3.04)] |
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