N10 | Maths Made Easy

N10

QUESTION: Evaluate (13+2)\times(36 \div 3^2).

 

ANSWER: There are two sets of brackets, so our first step should be to evaluate them both. Which one we do first doesn’t matter, so here we’ll choose the left one first. It only contains one operation, so we get:

13+2=15

Now, the bracket on the right contains two operations: an index/power, and a division. We do the index first followed by the division:

36\div 3^2=36\div 9=4

Therefore, we only have 1 operation left in our calculation (the multiplication between the two brackets), so we get the answer to be

15 \times 4 = 60.