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Primary 4
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Number and Algebra
Need help for this P4 question. Thank you!
Replies
4
Zhong Shu Hao
Something is wrong with the Q. Cant be solved.
6 years ago
Zhong Shu Hao
If Lance needs 3 more tarts to put the tarts in boxes of 4, he would have an odd number of tarts then. But the Q also states the he needs 2 more tarts to put the tarts in boxes of 6, which means he have an even number of tarts. Something is surely wrong with this Q.
6 years ago
Lee Yuet Meng
ok!
6 years ago
Priscilla Ng
Cannot be done.
6 years ago
Adrian Ng
Asked 9 years ago
SG
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Primary 6
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Number and Algebra
Making it visual...
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0
Joanne Chua
Asked 9 years ago
SG
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Primary 2
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Number and Algebra
Anyone can help please?
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8
Zhong Shu Hao
Gives R8 when divided by 10 --> number ends with '8'
Gives R4 when divided by 8 --> is a multiple of 4, but not 8.
Listing numbers ending with '8',
08
18
28
...
Hence, ans is 28.
6 years ago
Carol Khoh
Given that the number when divided by 10 will gives a remainder of 8, I will assume the answer is 18.
However, 18/8, the remainder is 2.
So 18 is incorrect.
The next assumption will be 28/10. Remainder also 8.
And 28/8, remainder is 4.
So, the smallest possible number is 28.
6 years ago
Joanne Chua
Teacher ask them to do a guess & check table..... but how to draw...
6 years ago
Zhong Shu Hao
3 columns:
1) Numbers ending with 8
2) remainder when divided by 8
3) tick/cross
6 years ago
Zhong Shu Hao
OR:
2 columns:
1) numbers ending with 8
2) does it give a remainder of 4 when divided by 8? (Yes/no)
SG
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Primary 3
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Number and Algebra
Is e model corrrecly drawn?
Replies
10
Zhong Shu Hao
correct
6 years ago
Zhong Shu Hao
who wrote "10" for 1 unit?
6 years ago
Nabira Sf Ong
Is 1unit not 10. Zhong, can pls show why 24+16 not 24-16
6 years ago
Zhong Shu Hao
because Keith GAINED 16, while John LOST 24. After this, The 2 extra units that John used to have is compensated full. So it is
2 units = 24 + 16
2 units = 40
1 unit = 20
6 years ago
Nabira Sf Ong
Draw model pls
6 years ago
Zhong Shu Hao
6 years ago
Nabira Sf Ong
Thanks zhong. I keep making 24 as 1 unit. Understand liao, thanks.