用简便方法计算 4000÷125÷8= 4200÷4÷25= 32×125= 350÷14=？

Question

如题所述

Answer 1

4000÷125÷8=4000/（125*8）=4000/1000=4
4200÷4÷25=4200/（25*4）=4200/100=42
32×125=4*8*125=4*1000=4000
350÷14=350/2/7=25
祝学习进步
望采纳 谢谢

Answer 2

4000÷125÷8
=4000÷(125×8)
=4000÷1000
=4
4200÷4÷25
=4200÷(4×25)
=4200÷100
=42
32×125
=4×(8×125)
=4×1000
=4000
350÷14
=350÷7÷2
=50÷2
=25

Answer 3

解：4000÷125÷ 8

=4000÷(125x8)

=4000÷1000

=4

4200÷4÷25

=4200÷(4x25)

=4200÷100

=42

32X125

=4x(8x125)

=4x1000

=4000

350x14

=(350x2)x7

=700X7

=4900

追答

350÷14
=350÷7÷2
=50÷2
=25

Answer 4

乘法结合律:
4000÷125÷8
=4000÷(125×8)
=4000÷1000
=4。
4200÷4÷25
=4200÷(4×25)
=4200÷100
=42。
32×125
=4×8×125
=4×(8×125)
=4×1000
=4000。
350÷14
=50×7÷(7×2)
=50÷2×(7÷7)
=25。本回答被提问者采纳

Answer 5

采纳呦，谢谢！