4.6x1.01简便计算 2.7x1.01的脱式计算

4.5*(4.5+5.5) =4.5*10 =45

原式等于3.4*(1+0.01)=3.4*1+3.4*0.01=3.4+0.034=3.434所以原式的计算结果为3.434

4.4x1.01=4.4x1.+0.044=4.444

4.7*1.01=4.7*(1+0.1)=4.7+0.47=5.17

=8.9x(1+0.01)=8.9x1+8.9x0.01=8.9+0.089=8.989

9.8*1.01 =9.8*(1+0.01) =9.8*1+9.8*0.01 =9.8+0.098 =9.898

4.6x1.01=4.6x(1+0.01)=4.646

8.9 x0.01= 0.089, 8.9x1.01 = 8.9 + 0.089 = 8.989 请采纳谢谢

=7.2x(1+0.01) <= 先把1提出来=7.2x1+7.2x0.01=7.2+0.072=7.272

拆为8.9*1+8.9*0.01,先写89,然后数两个相乘数的小数点个数和来确定其小数点的位置,即为8.9+0.089=8.989