Question

64×125×84÷(8×7×6×5×4×3)简算方法？

Answer 1

64*125*84/（8*7*6*5*4*3）
=64*125*84/8/7/6/5/4/3
=（64/8）*（125/5）*（84/4/3）/7/6
=8*25*（7/7）/6
=200/6
=33.33333333
约等于33.33.

Answer 2

解:原式=8×8×25×5×3×4×7÷（8×7×6×5×4×3）
=8×25×（8×7×5×4×3）÷（8×7×5×4×3）÷6
=8×25÷6
=100/3

Answer 3

64×125×84÷(8×7×6×5×4×3)
＝64×125×84×1/(8×7×6×5×4×3)
＝[64×1/(8×4)]×(125×1/5)×[84×1/(6×7)]×1/3
＝(64×1/32)×25×(84×1/42)×1/3
＝2×25×2×1/3
＝50×2×1/3
＝100×1/3
＝100/3