In the chapter, How to 'Operate' in Maths, we discussed the order in which problems with more than one operation should be solved. The same order applies whether we are looking at questions with whole numbers, decimals or a combination of both.

Just to remind you, the order goes:

Step 1: Do operations inside grouping symbols such as parentheses (...), brackets [...] and braces {...}.

Step 2: Do multiplication (including powers) and division (including roots) going from left to right.

Step 3: Do addition and subtraction going from left to right.

Examples

question 1

Evaluate:$\left(4.5\times2.2\right)^2$(4.5×2.2)2

Think: Remember the order of operations. We solve operations inside parentheses first. Then we solve multiplication.