( )()( )乘以7=( )17 2( )3( )乘以4=( ) ( )48 ()8乘以8=( )24

问题描述:

( )()( )乘以7=( )17 2( )3( )乘以4=( ) ( )48 ()8乘以8=( )24

(1 )(3)(1 )乘以7=( 9)17
2(0 )3(7 )乘以4=(8 ) ( 1)48
(2)8乘以8=(2 )24