用递等式进行计算，能简便的要简便简便计算．
7.29×4.6+46×1.271
（28.7﹣18.6÷3.1）×0.8
16﹣5.32﹣4.68
40.8+14.7÷（14.6﹣12.5）
3.7×0.125+6.3÷8
0.72+9.6÷3.2．
相关试题
直接写得数．
26+29= 22×4= 44+17= 90÷3=
80﹣45= 1300﹣500= 120×3= 64﹣18=
88÷2= 500×6= 1400﹣700= 300×7=
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