...过程,1:97×96分之五= 2:70×7分之1= 3:(9分之8+4分之3-3分之2...
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发布时间:2024-10-23 09:35
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热心网友
时间:6分钟前
1:97×96分之五
=(96+1)*5/96
=5+5/96
=5又5/96
2:70×7分之1
= 10
3:(9分之8+4分之3-3分之2)×72
=+54-48
=70
4: 72×(2分之1-3分之1+4分之1)
=36-24+18
=30
5:(9分之5+13分之1)×9+13分之4
=5+9/13+4/13
=5+1
=6
6:30×( 2分之1-3分之1+6分之1)
=15-10+5
=20
7: 7分之12×(6分之7+3分之14)
=2+8
=10
8:18分之7÷5+5分之1×18分之11
=7/90+11/90
=18/90
=5
热心网友
时间:3分钟前
9分之8的4分之1是?
热心网友
时间:7分钟前
97×5/96……变一变就简便
=(96+1)×5/96……乘法分配律
=96×5/96+1×5/96
=5+5/96
=5又5/96
70×1/7=10
(8/9+3/4-2/3)×72……乘法分配律
=8/9×72+3/4×72-2/3×72
=+54-48
=70
72×(1/2-1/3+1/4)……乘法分配律
=72×1/2-72×1/3+72×1/4)
=36-24+18
=30
(5/9+1/13)×9+4/13
= 5/9×9+1/13×9+4/13
=5+(9/13+4/13)
=5+1
=6
7/18÷5+1/5×11/18
=7/18×1/5+1/5×11/18
=1/5×(7/18+11/18)
=1/5×1
=1/5