數 學 8 題
1.(-10)-(6-5)
2.8-[(-20)+8)]
3.-8-[(-3)-(-2)]
4.10-[(-4-2)-(-5+2)]
5.4-[-3-(-6)+2|-1))
6.3-{5-[(-4)+(-3)]}
7.4-{7+[-6-(|-3|-4)]}
8.-6-{-3-[1-(2-5)]}
更新1:
5.4+[-3-( |(-6)+2|-1))
回答 (6)
✔ 最佳答案
這是功課嗎?
好孩子要自己寫作業啦,
你打這些問題的時間根本比寫功課還多了......
不過還是幫你解答。
1. -9
2. 20
3. -7
4. 13
5. 第5題你符號應該有打錯,所以我看不懂。
6. -9
7. 2
8. 13
2008-09-14 09:41:26 補充:
第1題是-11,算錯
2008-09-14 09:43:28 補充:
第8題是1,算錯
1.
(-10)-(6-5)
=(-10)-(1)
=-10-1
=-11
2.
8-[(-20)+8)]
=8-(-20+8)
=8-(-12)
=8+12
=20
3.
-8-[(-3)-(-2)]
=-8-(-3+2)
=-8-(-1)
=-8+1
=-7
4.
10-[(-4-2)-(-5+2)]
=10-[(-6)-(-3)]
=10-(-6+3)
=10-(-3)
=10+3
=13
5.
4+[-3-( |(-6)+2|-1)]
=4+[-3-( |-4|-1)]
=4+[-3-(4-1)]
=4+(-3-3)
=4-6
=-2
6.
3-{5-[(-4)+(-3)]}
=3-[5-(-4-3)]
=3-[5-(-7)]
=3-(5+7)
=3-12
=9
7.
4-{7+[-6-(|-3|-4)]}
=4-{7+[-6-(3-4)]}
=4-{7+[-6-(-1)]}
=4-[7+(-6+1)]
=4-[7+(-5)]
=4-(7-5)
=4-2
=2
8.
-6-{-3-[1-(2-5)]}
=-6-{-3-[1-(-3)]}
=-6-[-3-(1+3)]
=-6-(-3-4)
=-6-(-7)
=-6+7
=1
2008-09-15 01:30:09 補充:
計算錯誤重新修正
6.
3-{5-[(-4)+(-3)]}
=3-[5-(-4-3)]
=3-[5-(-7)]
=3-(5+7)
=3-12
=-9
參考: Me算
1.(-10)-(6-5)=-10-1=-11
2.8-[(-20)+8)]=8-(-12)=20
3.-8-[(-3)-(-2)]=-8-(-1)=-7
4.10-[(-4-2)-(-5+2)]=10-(-6+3)=13
5.4-[-3-(-6)+2|-1))=4-23 =-19
6.3-{5-[(-4)+(-3)]}=3-(5+7)=-9
7.4-{7+[-6-(|-3|-4)]}=4-2=2
8.-6-{-3-[1-(2-5)]}=-6-(-3-4)=1
1. -10-(1)=-11
2. 8-(-12)=20
3. -8-(-1)=-7
4. 10-[(-6)-(-3)]=10-(-3)=13
5. 第五題符號不懂
6. 3-[5-(-7)]=3-(12)=-9
7. 4-{7+[-6-(-1)]}=4-{7+(-5)}=4-(2)=2
8. -6-{-3-[1-(-3)]}=-6-{-3-[4]}=-6-{-7}=1
參考: 自己
1. -11
2. -4
3. -9
4. 7
5. 好像有打錯
6. 5
7. 2
8. 1
參考: 我
1.(-10)-(6-5)=-10-1=-11
2.8-[(-20)+8)]=8-(-12)=20
3.-8-[(-3)-(-2)]=-8-(-1)=-7
4.10-[(-4-2)-(-5+2)]=10-(-6+3)=13
5.4-[-3-(-6)+2|-1))=4-23 =-19
6.3-{5-[(-4)+(-3)]}=3-(5+7)=-9
7.4-{7+[-6-(|-3|-4)]}=4-2=2
8.-6-{-3-[1-(2-5)]}=-6-(-3-4)=1
2008-09-14 13:45:25 補充:
5.4+[-3-( |(-6)+2|-1)) =4+(-3-3)=-2
收錄日期: 2021-04-26 18:03:44
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