正負數......

2007-08-07 8:45 pm

a=-2,b=3,c=-1。
1.-a-(-b)+c
2.(a+b)/c
只需答案,拜託!

回答 (7)

2007-08-07 8:50 pm

✔ 最佳答案

1. -a - (-b) + c
= -(-2) - (-3) + (-1)
= 2+3-1
= 4

2. (a + b)/ c
= (-2 + 3) / -1
= 1 / -1
= -1

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2007-08-08 5:59 pm

1. -a - (-b) + c
= -(-2) - (-3) + (-1)
= 2+3-1
= 4

2. (a + b)/ c
= (-2 + 3) / -1
= 1 / -1
= -1

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2007-08-07 9:24 pm

1. 4

2. -1

參考: no

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2007-08-07 8:53 pm

1. 4
2. -1

用計數機便行!

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2007-08-07 8:48 pm

1.4
2.-1

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2007-08-07 8:47 pm

1. 4
2. -1

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2007-08-07 8:47 pm

1. 4
2. -1

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