34-(26-12)=?
回答 (19)
2007-02-03 9:22 pm
可以試下自己做~
式:
34-(26-12)
=34-14
=20//
或用正負數:
34-(26-12)
=34-26+12
=8+12
=20//
式:
35-(23-19)
=35-4
=31//
或用正負數:
35-(23-19)
=35-23+19
=12+19
=31//
式:
34-(26-12)
=34-14
=20//
或用正負數:
34-(26-12)
=34-26+12
=8+12
=20//
式:
35-(23-19)
=35-4
=31//
或用正負數:
35-(23-19)
=35-23+19
=12+19
=31//
參考: myself~
2007-02-02 4:53 am
最基本
34-(26-12)
=34-14 先計括號內
=20
or
另一計算方法(較困難)
34-(26-12)
=34-26+12 可先拆括號,然後把括號外的符號約,例:正負得負,負負得正
=20 答案同樣等於20
34-(26-12)
=34-14 先計括號內
=20
or
另一計算方法(較困難)
34-(26-12)
=34-26+12 可先拆括號,然後把括號外的符號約,例:正負得負,負負得正
=20 答案同樣等於20
參考: 自己
2007-02-02 4:46 am
34-(26-12)=20
先計(26-12)~ =14
後計34-(14)~ =20
ps: ( )的數要先計~
先計(26-12)~ =14
後計34-(14)~ =20
ps: ( )的數要先計~
2007-02-02 4:41 am
34-(26-12)
=34-14
=20
=34-14
=20
2007-02-02 4:41 am
34-(26-12)
=34-14
=20
=34-14
=20
2007-02-02 4:40 am
20
I hope I can help you
I hope I can help you
收錄日期: 2021-04-12 19:27:35
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