數學有向數6題(超急)要詳細計算

2010-09-15 3:03 am

題目如下:
1.(+18)+(+123)
2.(+47)-(-14)
3.71-(+23)
4.(-17)-(-35)
5.(-45)+(-6)
6.(-83)+(+27)

回答 (3)

2010-09-15 3:09 am

✔ 最佳答案

1. 18+123
= 141
2. 47-(-14)
= 61
3. 71-(+23)
=71-23
=48
4. -17+35
=18
5. -45-6
=-51
6. -83+27
=-56

參考: my calculation

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2010-09-15 3:13 am

1. 18+123
=141
2. 47+14
=61
3. 71-23
=48
4. -17+35
=18
5. -45-6
=-51
6. -83+27
=-56

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2010-09-15 3:10 am

1. 141
2. 61
3. 48
4. 18
5. -51
6. -56

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