解: 36×25×8等于( 7200 )
∵已知需求出36×25×8等于多少
A × B × C = A × (B × C)
∴36 × 25 × 8
= 36 × (25 × 8)
= 36 × 200
= 7200
答: 36×25×8等于7200
利用乘法交换律和乘法结合律算简便
36×25×8
=36×25×4×2
=(36×2)×(25×4)
=72×100
=7200
解:36x25x8=36x(25x8)=36x200=7200
36X25X8
=(36X2)X(25X4)
=72X100
=7200
8.25×10.2的脱式运算