請教這該是幾年級的數學題? - 國際學校

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教育王國 › 討論區 › 國際學校 › 請教這該是幾年級的數學題?

查看: 1407\|回覆: 7	go 請教這該是幾年級的數學題? [複製鏈接]

boy11

大宅

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	1049

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發表於 12-11-23 00:19 |只看該作者 |倒序瀏覽 |打印

An odometer registers the number of miles traveled by counting the number of times a tire turns. Adam's odometer is set for 18" diameter tires, but he decided to put 16" diameter tires on his bike. After a long ride, Adam's odometer said that he traveled about 47 miles. how far did Adam really travel ?

0 0 0 0

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boy11

大宅

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	1049

2^#

發表於 12-11-23 00:24 |只看該作者

selena has a 1 meter cube box filled with 1 centimeter cubes. 2.7% of these cubes are solid gold. selena wants to build cube that will hold these gold cubes. what size cube does she need to build ?

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FattyDaddy

男爵府

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	9572

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發表於 12-11-23 01:04 |只看該作者

In my day and age (talking about 35 years ago), these maths questions might appear in Form 1 or 2 in secondary school.

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jolalee

男爵府

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	5616

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發表於 12-11-23 05:49 |只看該作者

I studied half my primary and highschool in Canada. This would be avout Canadian grade 9-10 (yes, also back in the 80's)

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hhy2007

別墅

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	571

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發表於 12-11-23 10:08 |只看該作者

本帖最後由 hhy2007 於 12-11-23 10:27 編輯

It really depends on your kid's class/math teacher. Problems at such level of difficulty appeared in my daughter's class in Year 4 or 5 IB (or Grade 3 or 4 US system or local system equivalent), but reappeared in later years when other teachers introduced these topics. In my daughter's class, her teacher even gave them hard problems in topics of Combination and Arrangement at Year 4, but of course, back then, no matter how hard I tried to explain to my daughter, she still did not get it. This is why sometimes I prefer local way of math teaching. It's more easy to follow.