3.8乘10.1的简便运算脱式
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/23 20:17:12
x)3ֳxsY-5<ٷ MѲ~"}jPv6DP R@MP D@,
-`S 1j
Ԣb(((a3ID@HD
p{:ln _l~3po! c*
3.8乘10.1的简便运算脱式
3.8乘10.1的简便运算
脱式
3.8乘10.1的简便运算脱式
3.8 x 10.1
=3.8x(10+0.1)
=3.8x10+3.8x0.4
=38+0.38
=38.38
3.8*10.1
=3.8*(10+0.1)
=38+0.38
=38.38 .
(4-0.2)*(10+0.1)=40+0.4-2-0.02=38.38
(4-0.2)*(10+0.1)=40-2+0.4-0.02=38.38
???????
3.8x10.1
=3.8x(10+0.1)
=38+0.38
=38.38