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標題:

Maths (Directed Number)

發問:

1. Suppose that "-$200" represents the price of a computer was decreased by $200, use a directed number to represent the price of a computer was decreased by $500 2. Suppose thet :+$1000: represents to deposit $1000 into a bank account, what does "-$500" mean?

最佳解答:

1. -$500 2. "-$500" means withdrawing $500 from a bank account. I hope it may help

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