题目内容
5.直接写得数.2.5×40= | 1.73+2.07= | 10-0.9= | 4.84÷0.4= |
3.56×0.01= | 17.6÷0.01= | 30.5÷5= | 1.25×0.8÷1.25×0.8= |
5.66÷0.2= | 84÷0.7= | 9÷5= | 1-0.25-0.75= |
分析 根据小数加减乘除法的计算法则计算即可求解.注意1.25×0.8÷1.25×0.8变形为(1.25÷1.25)×(0.8×0.8)计算,1-0.25-0.75根据减法的性质计算.
解答 解:
2.5×40=100 | 1.73+2.07=3.8 | 10-0.9=9.1 | 4.84÷0.4=12.1 |
3.56×0.01=0.0356 | 17.6÷0.01=1760 | 30.5÷5=6.1 | 1.25×0.8÷1.25×0.8=0.64 |
5.66÷0.2=28.3 | 84÷0.7=120 | 9÷5=1.8 | 1-0.25-0.75=0 |
点评 考查了小数加减乘除法,关键熟练掌握计算法则正确进行计算.
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13.直接写结果.
3.6÷1.2= | 0.72÷0.9= | 2.6÷13= | 0.78÷6= |
7.2÷0.4= | 1÷0.25= | 5.5÷11= | 3÷8= |
0.25×4= | 12.5×8= | 1.5×100= | 0.8×0.05= |