125乘7×8×9的简便运算是什么呀?

2025-01-19 17:01:34
推荐回答(4个)
回答1:

(125*8)*(7*9)=1000*63=63000

回答2:

125×7×8×9
=(125×8)×(7×9)
=1000×63
=63000

回答3:

125x7x8x9
=25x5x7x8x9
=(5x8)x(7x9)x25
=40x63x25
=(40x25)x63
=1000x63
=63000

回答4:

=125×8×(7×9)=1000×63=63000