4.52.6+2.65.5 99*0.56-0.56

分类: 作业答案 • 2023-01-18 23:45:49

问题描述：

4.5*2.6+2.6*5.5 99*0.56-0.56
上面的题简便运算

答

4.5*2.6+2.6*5.5
=(4.5+5.5)*2.6
=10*2.6
=26
99*0.56-0.56
=(99-1)*0.56
=(100-2)*0.56
=100*0.56-1.12
=56-1.12
=54.88

4.5*2.6+2.6*5.5 99*0.56-0.56