后天不一定下雨． ．
计算下面各题，注意运用简便方法．
1.7﹣36÷30 1÷〔（1.1﹣0.7）×0.2〕 7.3×7.3+2.7×7.3 4.78﹣0.96﹣0.04 930÷5÷0.6．
递等式计算，能简算的要简算．
7.3×101﹣7.34.59÷4.5÷0.21.5×2.7﹣2.6
8.8×1.25（3.74﹣2.7）×8÷0.4．
计算下面各题，能简算的要简算
0.87×4.5﹣4.5×0.673.18﹣（0.33+1.18）
1.2+1.47÷0.71.76﹣[（0.74+0.26）÷0.8]．
脱式计算，能简算得要简算．
5.45+0.56×7.42.5×0.89×425×16.7﹣25×0.7
7.6×995.6×10.22.5×3.2×1.25
9.6÷0.4×0.253.56×2.8﹣1.24×0.9（12.5+1.25）×8
（2.5×1.7）×412.5×8.80.89×100.1
0.25×0.8×4×0.1258.4×0.26+0.7431.7﹣0.5×0.7﹣1.65．
用简便方法计算．
8.37×7.2+8.37×2.8
12.5×3.9×0.8
1.3+2.9+8.7+0.1
9.6×10.1．