简便运算35.6*0.8+3.56*12简便运算怎么算
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 11:18:57
![简便运算35.6*0.8+3.56*12简便运算怎么算](/uploads/image/z/8282-2-2.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%9735.6%2A0.8%2B3.56%2A12%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%E6%80%8E%E4%B9%88%E7%AE%97)
简便运算35.6*0.8+3.56*12简便运算怎么算
简便运算35.6*0.8+3.56*12
简便运算怎么算
简便运算35.6*0.8+3.56*12简便运算怎么算
把35.6看成是3.56,那么和35.6相乘的0.8扩大十倍,数值才不变.因此35.6*0.8+3.56*12=3.56*8+3.56*12=3.56*(12+8)=3.56*20=71.2
=3.56*(8+12)=3.56*20=71.2
3.56*10*0.8+3.56*12
= 3.56*(8+12)
= 3.56*20
= 71.2