Question

6.7×10.1简便运算。

Answer 1

6.7×10.1简便运算。

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

6.7*99+6.7简便运算

6.7x99+6.7x1
=6.7x(99+1)
=6.7x100
=670

6.7×48＋6.7＋6.7×51简便运算

6.7×48＋6.7＋6.7×51
=6.7×（48+1+51）
=6.7×100
=670

10.1×2.2简便运算:

简便运算
10.1×2.2
=(10+0.1)×2.2
=10×2.2+0.1×2.2
=22+0.22
=22.22

0.78×10.1简便运算

0.78×10.1
=0.78x(10+0.1)
=0.78x10+0.78x0.1
=7.8+0.078
=7.878

0.67×10.1简便运算

＝0.67×（10+0.1）
＝0.67×10+0.67×0.1
＝6.7+0.067
＝6.767

10.1*76.7简便运算

分解一下
10.1x76.7=(10+0.1)x76.7=10x76.7+0.1x76.7=767+7.67=774.67

3.5*10.1 简便运算

3.5x10.1
=3.5x（10+0.1）
=3.5x10+3.5x0.1
=35+0.35
=35.35
有不明白的可以追问！谢谢！
祝学习进步！

4.8*10.1简便运算

4.8*10.1
=4.8*(10+0.1)
=4.8*10+4.8*0.1
=48+0.48
=48.48