1÷ = | 4+ = | ÷2= | × = |
÷1.2= | 0.32+ = | -0.2= | 0.8+0.39= |
×12= | +0.8= | 2 = | ×34= |
+ = | × = | × = | ![]() = |
解:1÷ = , | 4+ =5 , | ÷2= , | × = , |
÷1.2= , | 0.32+ =0.4, | -0.2=0.6, | 0.8+0.39=1.19, |
×12=9, | +0.8=1.175, | 2 =2.4, | ×34= , |
+ = , | × = , | × = , | ![]() = . |
分析:根据分数、小数四则运算的运算法则直接求解即可.
点评:本题考查了分数的四则运算,计算时要细心,根据运算法则直接求解即可,要注意:把结果化成最简分数.
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×34=
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