题目内容
直接写出得数.
2.5×10﹦ | 6.8÷100﹦ | 100×0.7﹦ | 0.8+0.2﹦ | 2+0.2﹦ |
1-0.9﹦ | 1.5×4﹦ | 0.3×0.3﹦ | 9.6÷6﹦ | 0.67-0.07﹦ |
0.5+0.28﹦ | 43×0.2﹦ | 4.9÷10﹦ | 0.64÷0.8﹦ | 3÷0.5﹦ |
分析:根据小数加、减、乘、除法的计算法则,直接进行口算即可.
解答:解:
故答案为:25,0.068,70,1,2.2,0.1,6,0.09,1.6,0.6,0.78,8.6,0.49,0.8,6
2.5×10﹦25; | 6.8÷100﹦0.068; | 100×0.7﹦70; | 0.8+0.2﹦1; | 2+0.2﹦2.2; |
1-0.9﹦0.1; | 1.5×4﹦6; | 0.3×0.3﹦0.09; | 9.6÷6﹦1.6; | 0.67-0.07﹦0.6; |
0.5+0.28﹦0.78; | 43×0.2﹦8.6; | 4.9÷10﹦0.49; | 0.64÷0.8﹦0.8; | 3÷0.5﹦6. |
点评:此题考查的目的是牢固掌握小数四则运算的计算法则,并且能够正确熟练地进行口算,提高口算能力.
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