標題:

maths

發問:

Harry scored 54marks in his first Mathematics test.He scored 5marks more in the second test,and then 15marks less in the third test.In the fourth test,he scored a further 9marks less.How many marks did Harry score in the fourth test?

最佳解答:

要解左問題先 harry有4次測驗 第一次係54分 第二次多5分(第二次變左+5) 第三次少15分(-15) 第四次少左9分 得出: 54+5-15-9=35 He score 35 marks in the fourth test.

其他解答:

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first 54 second 54+5=59 third 59-15=44 forth 44-9=35 he scored 35 marks in the forth test
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