1.计算下面各题,能简便计算的要简算。 0.84×13.5÷0.16 =11.34÷0.16 =70.875 7.8+2.2×5.54 =7.8+12.188 =19.988 96.5÷5÷0.2 =96.5÷(5×0.2) =96.5÷1 =96.5 4.5×2.74-0.74×4.5 =4.5×(2.74-0.74) =4.5×2 =9 1.25×88 =1.25×(80+8) =1.25×80+1.25×8 =100+10 =110 4.92÷(4.92×4) =4.92÷4.92÷4 =1÷4 =0.25 2.计算下面各题,能简便计算的要简算。 1.25×4.6×8 =(1.25×8)×4.6 =10×4.6 =46 56×1.25 =7×8×1.25 =7×(8×1.25) =7×10 =70
