4.8÷0.12÷4 79×1.25×0.8 32×5.1＋51×6.8 10.1×69 能简算的简算今天要求答了给30分 _数学解答

4.8÷0.12÷4 79×1.25×0.8 32×5.1＋51×6.8 10.1×69 能简算的简算今天要求答了给30分求求

人气：493 ℃　时间：2020-02-05 00:53:06

解答

4.8÷0.12÷4
=4.8÷（0.12x4）
=4.8÷0.48
=10
79×1.25×0.8
=79x1
=79
32×5.1＋51×6.8
=3.2x51+51x68
=(3.2+6.8)x51
=10x51
=510
10.1×69
=69x10+69x0.1
=690+6.9
=696.9