简便计算100道?

如题所述

第1个回答  2020-08-24
00÷125÷8
=300÷(125×8)
=300÷1000
=0.3

396-96-172-28
=(396-96)-(172+28)
= 300-200
= 100

125*24
= 125*8*3
= 1000*3
= 3000

360÷24
=360÷6÷4
=60÷4
=15

240÷48
=240÷24÷2
=10÷2
=5

27+456+73
=(27+73)+456
=100+456
=556

24÷4+56÷4
=(24+56)÷4
=80÷4
=20

2.5×0.7×0.8
=(2.5×0.8)×0.7
=60×0.7
=42
800÷32
=800÷8÷4
=100÷4
=25

630÷42
=630÷6÷7
=105÷5
=15