计算，能简算的要简算．
0.75×18÷0.15
6.5×9.9
5.79÷0.125÷0.8
9.07+22.78÷3.4
4.7×0.12+4.7×0.88
12.5×8×0.025×4．
计算，能简算的要简算．
0.75×18÷0.15
6.5×9.9
5.79÷0.125÷0.8
9.07+22.78÷3.4
4.7×0.12+4.7×0.88
12.5×8×0.025×4．
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