Q&A - P3 Math

[Michaelia0816]

I also got a method, similar but more understanding!

Method: Assuming
Let us assume that all are boys
Time- 42x3=126
Minus- 154-126=28
Minus- 4-3=1
Divide- 28 divide 1=28
So the answer is 28.
remember TMMD method using assuming!

[peapot]

Oh! this method is abit like the 2 legs and 4 legs question.


I also have a question which I remember someone ask before. But I can’t understand why? Hope someone can explain.

Jeremy brought a sum of money to buy some pencils. If he buys 4 pencils, he would be left with $2. If he buys 5 pencils, he would need another $1.

How much is the cost of 1 pencil? and how much money did he have at first?

[mrswongtuition]

Hope this helps!


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[peapot]

Thanks!

[Bunbun]

Hi there, need some help here:


Which of the following numbers can be a remainder when divided by 6 ?

(1) 8
(2) 7
(3) 6
(4) 4

I think it’s (4) but I am not sure.
Thanks in advance!

[mrswongtuition]

Bunbun:

Hi there, need some help here:


Which of the following numbers can be a remainder when divided by 6 ?

(1) 8
(2) 7
(3) 6
(4) 4

I think it's (4) but I am not sure.
Thanks in advance!

Rule to remember: The remainder must always be smaller than the divisor.
Therefore, all options which are the same as the divisor (6) or larger than the divisor (7 and are not possible.
The answer is 4.

[Bunbun]

Thank u very much! Dd is only in p3 and the questions she needs help with already have me tearing my hair apart. Really can't imagine when she moves on to upper pri. :nailbite:

[Michaelia0816]

Thank for the rule, I almost forget it, even through i did not ask the question!

[Michaelia0816]

Do p3 or p4 learn how to times the faction, I not so sure!

[jwxh]

Please help me to solve this problem


A skirt and a dress cost $155.
A skirt and a pair of pants cost $95
A skirt, a dress and a pair of pants cost $300
How much does a skirt cost?
Thank You!