我想問下D數學.....
唔該比麻個步驟
1.(+22)-[(+13)-(-41)]
2.[(-21)+(-1)]-(-12)
3.(+92)-(-72)+(-24)
回答 (3)
✔ 最佳答案
1.
(+22)-[(+13)-(-41)]
= 22 - 13 - 41.
= -32
2.
[(-21)+(-1)]-(-12)
= -21 - 1 +12
-10
3.
(+92)-(-72)+(-24)
= 92 + 72 - 24
= 140
1.
(+22)-[(+13)-(-41)]
= 22 - 13 - 41.
= -32
2.
[(-21)+(-1)]-(-12)
= -21 - 1 +12
-10
3.
(+92)-(-72)+(-24)
= 92 + 72 - 24
= 140
收錄日期: 2021-04-21 12:07:24
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