1. 9除(-3)-(-2)乘3=?
2. 45-(-3)(-3)(-3)=?
3. -45-(-4)(-4)(-4)(-4)=?
4. 12+(-12)=?
5. 15-(-4)=?
HELP! HELP!HELP ME!
五條數唔識!HELP
2009-07-05 9:28 pm
回答 (6)
2009-07-05 10:46 pm
✔ 最佳答案
要先乘除，後加減1. 9÷(-3)-(-2)×3
=(-3)-(-6)
=(-3)+6 [負負得正，所以變+6]
= 3
2. 45-(-3)(-3)(-3)
= 45-9(-3)
= 45-(-27)
= 45+27
= 72
3. -45-(-4)(-4)(-4)(-4)
= -45-(16)(16)
= -45-256
= -301
4. 12+(-12)
= 12-12
= 0
5. 15-(-4)
= 15+4
= 19
參考: 自己
2009-07-14 3:22 pm
1.9/-3-(-2)*3
=-3-(-6)
=-3+6
=3
2.45-(-3)(-3)(-3)
=45-(9)(-3)
=45-(-27)
=45+27
=72
3.-45-(-4)(-4)(-4)(-4)
=-45-(16)(16)
=-45-256
=-301
4.12+(-12)
=12-12
=0
5.15-(-4)
=15+4
=19
=-3-(-6)
=-3+6
=3
2.45-(-3)(-3)(-3)
=45-(9)(-3)
=45-(-27)
=45+27
=72
3.-45-(-4)(-4)(-4)(-4)
=-45-(16)(16)
=-45-256
=-301
4.12+(-12)
=12-12
=0
5.15-(-4)
=15+4
=19
參考: me
2009-07-05 10:26 pm
1) (-3)-(-6) (要先乘除, 後加減, 所以要先計9除3和-2乘3)
=-3+6
=3
2) 45-(-27)
=45+27
=72
3)-45-256
=-301
4) 12-12
=0
5) 15+4
=19
=-3+6
=3
2) 45-(-27)
=45+27
=72
3)-45-256
=-301
4) 12-12
=0
5) 15+4
=19
2009-07-05 9:38 pm
1. 9除(-3)-(-2)乘3=(-3)-(-6)=-3+6=3
2. 45-(-3)(-3)(-3)=45-(-27)=45+27=72
3. -45-(-4)(-4)(-4)(-4)=-45-256=-301
4. 12+(-12)=12-12=0
5. 15-(-4)=15+4=19
2. 45-(-3)(-3)(-3)=45-(-27)=45+27=72
3. -45-(-4)(-4)(-4)(-4)=-45-256=-301
4. 12+(-12)=12-12=0
5. 15-(-4)=15+4=19
2009-07-05 9:36 pm
1:-9
2:-48
3:45
4:0
5:-19
2:-48
3:45
4:0
5:-19
收錄日期: 2021-04-13 16:42:41
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https://hk.answers.yahoo.com/question/index?qid=20090705000051KK00658