Re: [中學] 複數運算
補充:
課本解答:
http://i.imgur.com/aIc2yNk.jpg


解答有三個式子,算起來都錯
滿納悶……
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→
12/29 22:27, , 1F
12/29 22:27, 1F
推
12/29 22:46, , 2F
12/29 22:46, 2F
→
12/29 22:46, , 3F
12/29 22:46, 3F
→
12/29 22:48, , 4F
12/29 22:48, 4F
→
12/29 22:48, , 5F
12/29 22:48, 5F
推
12/29 22:58, , 6F
12/29 22:58, 6F
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