计算下面各题，怎样算简便就怎样算．0.125×163.2×5.6-11.45.74×99+5.744.75+3.25×2.4+7.63.8×1.4+18.2÷0.74.8×0.254.7×10.27.63×99+7.639

Question

计算下面各题，怎样算简便就怎样算．

0.125×16	3.2×5.6-11.4	5.74×99+5.74
4.75+3.25×2.4+7.6	3.8×1.4+18.2÷0.7	4.8×0.25
4.7×10.2	7.63×99+7.63	9.4-1.2÷0.6+6.24

Answer 1

（1）0.125×16
=0.125×（8×2）
=0.125×8×2
=1×2
=2

（2）3.2×5.6-11.4 
=17.92-11.4
=6.52

（3）5.74×99+5.74
=5.74×（99+1）
=5.74×100
=574

（4）4.75+3.25×2.4+7.6
=4.75+7.8+7.6
=12.55+7.6
=20.15

（5）3.8×1.4+18.2÷0.7
=5.32+26
=31.32

（6）4.8×0.25 
=1.2×4×0.25
=1.2×（4×0.25）
=1.2×1
=1.2

（7））4.7×10.2
=4.7×（10+0.2）
=4.7×10+4.7×0.2
=47+0.94
=47.94

（8）7.63×99+7.63
=7.63×（99+1）
=7.63×100
=763

（9）9.4-1.2÷0.6+6.24
=9.4-2+6.24
=7.4+6.24
=13.64