Question

能简算的要简算+10-0.72÷0.9+10.2×0.75÷0.5？

Answer 1

10-0.72÷0.9+10.2×0.75÷0.5
解：=10-72÷90+10.2×（75÷50）
=10-0.8+10.2×1.5
=9.2+10.2×1.5
=24.5

Answer 2

10-0.72÷0.9+10.2×0.75÷0.5
=10-7.2÷9+10.2×0.75×2
=10-0.8+10.2×(0.75×2)
=10-0.8+10.2×1.5
=(10-0.8)+10.2÷2×3
=9.2+5.1×3
=9.2+15.3
=24.5

Answer 3

+10一0.72÷0.9+10.2×0.75÷0.5
=10一0.8+10.2×（7.5÷5）
=9.2+10.2×1.5
=9.2+10×1.5+0.2×1.5
=9.2+15+0.3
=24.5

Answer 4

10-0.72÷0.9+10.2×0.75÷0.5
=10-0.8+10.2×1.5
=10-0.8+10.2×(1+0.5)
=10-0.8+10.2+5.10
=25.3-0.8
=24.5
这道题主要是计算两位数乘除一位数的乘除法，把两位数化简后计算就可以了。