ldcf.net
当前位置:首页 >> 6.7×10.1,的简便计算方法是什么? >>

6.7×10.1,的简便计算方法是什么?

6.7×10.1 =6.7×10+6.7×0.1 =67+0.67 =67.67

6.7×10.1 =6.7×(10+0.1) =6.7×10+6.7×0.1 =67+0.67 =67.67

6.7乘(10加0.1) =6.7乘10+6.7乘0.1 =67+0.67=67.67

1.6×115=(10+0.6)×115=10×115+0.6×115=1150+69=1219 0.7×10-0.1=0.7×10-10×0.01=(0.7-0.01)×10=0.69×10=6.9

g

7/10×1/6+3/10÷6 =7/10×1/6+3/7×1/6 =(7/10+3/10)×1/6 =1×1/6 =1/6

7/16*5/10+7/10*1/6-7/16 =7/16*(5/10-1)-7/60 =-7/32-7/60 =-7*(1/32+1/60) =-7*(15+8)/480 =-161/480

2*5*10*1*(3*4*6*7*8*9) =100*(3*2*2*2*3*7*2*2*2*3*3) =700*(3*3*3*3)*(2*2*2*2*2*2) =700*81*64 =44800*(80+1) =3584000+44800 =3628800

原式 =1/6+7/8+10/12 =1/6+7/8+5/6 =(1/6+5/6)+7/8 =1+7/8 =1又7/8 供参考。

6点七乘10点1 =6.7×(10+0.1) =6.7×10+6.7×0.1 =67+0.67 =67.67

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com