Math CentralQuandaries & Queries


Question from Raina, a parent:

I have four numbers 3 3 9 5 that need to equal 24 using addition subtraction multipliction and division and I'm so stuck.

We have three responses for you

Hi Raina,

Think of two numbers that multiplied together equal 24, then try to form those two numbers from the numbers given to you.
hint: to form the two numbers to multiyply you will add two of the given numbers together, and use subtraction on the other two.




How about 39 - 3x5 ?

Stephen La Rocque


Or (9/3) × (3 + 5)?


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