Using Brackets

Using Brackets

GCSE(F)

Brackets have the highest priority in BIDMAS, and are used to change the order in which calculations are carried out. Perform calculations within brackets first.

Examples

1. Add brackets to this expression to make it correct: 5 + 3 x 3 = 24.

Answer: (5 + 3) x 3 = 24

Add the 5 and 3 before the multiply. Without the brackets, the answer is 14.

2. Re-write this expression, putting brackets in the correct place: 12 - 6 x 2 + 2 = 24.

Answer: (12 - 6) x (2 + 2) = 24.

Work out the brackets first: (12 - 6) = 6 and (2 x 2) = 4 6 x 4 = 24

Calculate the answer of the calculations inside backets first.