小学数学分配律数学题60道
答案:2 悬赏:0 手机版
解决时间 2021-03-01 12:37
- 提问者网友:轮囘Li巡影
- 2021-03-01 02:52
小学数学分配律数学题60道
最佳答案
- 五星知识达人网友:玩世
- 2021-03-01 03:32
84×101
=84×(100+1)
=84×100+84
=8400+84
=8484
(300+6)×12
=300×12+6×12
=3600+72
=3672
504×25
=(500+4)×25
=500×25+4×25
=12500+100
=12600
25×(4+8)
=25×4+25×8
=100+200
=300
78×102
=78×(100+2)
=78×100+78×2
=7800+156
=7956
25×204
=25×(200+4)
=25×200+25×4
=5000+100
=5100
99×64
=(100-1)×64
=100×64-64
=6400-64
=6336
99×13+13
=(99+1)×13
=100×13
=1300
(20+4)×25
=20×25+20×4
=100+80
=180
35×37+65×37
=(35+65)×37
=100×37
=3700
25×41
=25×(40+1)
=25×40+25×1
=100+25
=125
32×(200+3)
=32×200+32×3
=6400+96
=6496
38×29+38
=38×(29+1)
=38×30
=1140
39×101
=39×(100+1)
=39×100+39×1
=3939
=84×(100+1)
=84×100+84
=8400+84
=8484
(300+6)×12
=300×12+6×12
=3600+72
=3672
504×25
=(500+4)×25
=500×25+4×25
=12500+100
=12600
25×(4+8)
=25×4+25×8
=100+200
=300
78×102
=78×(100+2)
=78×100+78×2
=7800+156
=7956
25×204
=25×(200+4)
=25×200+25×4
=5000+100
=5100
99×64
=(100-1)×64
=100×64-64
=6400-64
=6336
99×13+13
=(99+1)×13
=100×13
=1300
(20+4)×25
=20×25+20×4
=100+80
=180
35×37+65×37
=(35+65)×37
=100×37
=3700
25×41
=25×(40+1)
=25×40+25×1
=100+25
=125
32×(200+3)
=32×200+32×3
=6400+96
=6496
38×29+38
=38×(29+1)
=38×30
=1140
39×101
=39×(100+1)
=39×100+39×1
=3939
全部回答
- 1楼网友:我住北渡口
- 2021-03-01 04:02
分配律有乘法分配律和除法分配律两种
公式为:ab+ac=a*(b+c)
(a+b)/c=a/c+b/c
例如:23*25+77*25=(23+77)*25
108*125=(100+8)*125=100*125+8*125
(690-46)/23=690/23-46/23
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