Question

求几道6年级的简便应用题1.(8份之3+6份之5)乘242.23乘22份之5 3.4份之3乘8份之5+4份之1乘8份之5

Answer 1

1.(8份之3+6份之5)乘24

=24*3/8+24*5/6

=9+20

=29

2.23乘22份之5

=23*5/22

=（22+1）*5/22

=22*5/22+1*5/22

=5+5/22

=5又5/22

3.4份之3乘8份之5+4份之1乘8份之5

=3/4*5/8+1/4*5/8

=5/8（3/4+1/4）

=5/8*1

=5/8