3.8x101,3.5x99+3.5,32.7+998的简便运算。
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解决时间 2021-04-06 23:50
- 提问者网友:遁入空寂
- 2021-04-06 08:39
3.8x101,3.5x99+3.5,32.7+998的简便运算。
最佳答案
- 五星知识达人网友:街头电车
- 2021-04-06 09:13
3.8x101
=3.8x100+3.8x1
=380+3.8
=383.8
3.5x99+3.5
=3.5x(99+1)
=3.5x100
=350
32.7+998
=32.7+(1000-2)
=32.7+1000-2
=1032.7-2
=1030.7
=3.8x100+3.8x1
=380+3.8
=383.8
3.5x99+3.5
=3.5x(99+1)
=3.5x100
=350
32.7+998
=32.7+(1000-2)
=32.7+1000-2
=1032.7-2
=1030.7
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