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计算:(1)?22?4÷(?1?3)×(?122);(2)?23?(?113+56?34?712)÷124
计算:(1)?22?4÷(?1?3)×(?122);(2)?23?(?113+56?34?712)÷124....
计算:(1)?22?4÷(?1?3)×(?122);(2)?23?(?113+56?34?712)÷124.
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(1)原式=-4-4÷(-4)×(-
)
=-4-
=?4
;
(2)原式=-23-(-
×24+
×24-
×24-
×24)
=-23-(-32+20-18-14)
=-23-(-44)
=-23+44
=21.
1 |
4 |
=-4-
1 |
4 |
=?4
1 |
4 |
(2)原式=-23-(-
4 |
3 |
5 |
6 |
3 |
4 |
7 |
12 |
=-23-(-32+20-18-14)
=-23-(-44)
=-23+44
=21.
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