3:4= :8=9: == %
递等式计算(能简算的要简算).(1)92.3﹣55.51+4.49(2)6.52+1.43+8.57+3.48(3)75.8﹣13.57﹣1.43(4)39×89+39×12﹣39(5)5208÷(31×56)(6)(2657+35×26)÷29.
(1)5.1÷0.17÷3(2)1.25×1.05﹣0.05×1.25(3)8÷[(40.75﹣9.5)×0.4](4)1.75×3.75÷0.175(5)1.12×1.8+2.24×0.1.
怎样简便就怎样算.70﹣29.6﹣10.4 0.9+1.08+0.92+0.190÷(3.6﹣1.8)+5.1 0.36÷[(6.1﹣4.6)×0.8].
怎么样简便怎样算.54÷(4.86+5.94)1.75÷2.5÷O.4 0.6×0.72+0.28×0.62.8+7.56+4.2 0.7×99+0.7 2.6+0.4×l.9.
脱式计算(能简算就简算).10﹣5×1.65 98.4﹣98.4×0.9 3.2×1.25×0.257.75×0.4﹣0.432÷0.48 10.1×8.6 4.35﹣(2.35﹣1.7)