简便计算100道及答案?
1个回答
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0.25x1.25x32
=0.25x1.25x(8x4)
=(0.25×4)x(1.25x8)
=1X10
=10
300÷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
800÷32
=800÷8÷4
=100÷4
=25
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
27+456+73
10-0.4-2.6
0.43+8.6+0.57
244+182+156
14.02-3.5-6.5
2.78+19+199
912-163-237
=0.25x1.25x(8x4)
=(0.25×4)x(1.25x8)
=1X10
=10
300÷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
800÷32
=800÷8÷4
=100÷4
=25
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
27+456+73
10-0.4-2.6
0.43+8.6+0.57
244+182+156
14.02-3.5-6.5
2.78+19+199
912-163-237
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