脱式计算 875-143-357  ...
答案:2 悬赏:80 手机版
解决时间 2021-02-11 12:00
- 提问者网友:疯子也有疯子的情调
- 2021-02-10 14:59
脱式计算 875-143-357 8×9×125 56×67+56×33 45×102 270÷6÷5 (80-8)×125.
最佳答案
- 五星知识达人网友:怙棘
- 2021-02-10 16:34
(1)875-143-357
=875-(143+357)
=875-500
=375
(2)8×9×125
=(8×125)×9
=1000×9
=9000
(3)56×67+56×33
=56×(67+33)
=56×100
=5600
(4)45×102
=45×(100+2)
=45×100+45×2
=4500+90
=4590
(5)270÷6÷5
=270÷(6×5)
=270÷30
=9
(6)(80-8)×125
=80×125-8×125
=10000-1000
=9000
=875-(143+357)
=875-500
=375
(2)8×9×125
=(8×125)×9
=1000×9
=9000
(3)56×67+56×33
=56×(67+33)
=56×100
=5600
(4)45×102
=45×(100+2)
=45×100+45×2
=4500+90
=4590
(5)270÷6÷5
=270÷(6×5)
=270÷30
=9
(6)(80-8)×125
=80×125-8×125
=10000-1000
=9000
全部回答
- 1楼网友:何以畏孤独
- 2021-02-10 16:52
357-219+143-81
=(357+143)-(219+81)
=500-300
=200
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