No, I don’t think so. But it think it’s wise to use pencils for the real complicated questions, because you might have to correction-tape it for a while if your statements are wrong, or canceling it will make it look messy.

ChiefKiasu:

From Ai Tong Pri 3 SA1 Maths:


A teacher gave her students some balloons. If she gave 6 balloons to each student, she will have 2 balloons left. If she gave 8 balloons to each student, she will be short of 2 balloons. What is the smallest possible number of students she has?

Try to do this without using ALGEBRA!

Excess+Shortage
______________ = No. Of Students
Difference

So,

2+2=4
4/2=2

So, the answer is 2.

Hey there.

How do I solve this kind of questions?:


There are some apples in boxes A, B and C.
40% of the oranges in A is equal to 25% of the oranges in B.
50% of the oranges in B is equal to the number of oranges in C (100%).
Express the number of oranges in C to A as a fraction.

I know the answer, but when I solve it things get really complicated. Can someone give me a "fixed" way of solving it? Thanks.