如题所述
第1个回答 2020-04-02
（125*8）*（7*9）=1000*63=63000
第2个回答 2020-04-02
125×7×8×9
=（125×8）×（7×9）
=1000×63
=63000
=（125×8）×（7×9）
=1000×63
=63000
第3个回答 2020-04-02
125x7x8x9
=25x5x7x8x9
=(5x8)x(7x9)x25
=40x63x25
=(40x25)x63
=1000x63
=63000
=25x5x7x8x9
=(5x8)x(7x9)x25
=40x63x25
=(40x25)x63
=1000x63
=63000
第4个回答 2022-12-09
=125×8×（7×9）=1000×63=63000
