Question 1

Find the squares of these numbers without a calculator.

a	\(12^2\) =
b	\(7^2\) =
c	\(17^2\) =
d	\(33^2\) =

Question 2

Calculators may be used.

a	\(\sqrt{81}\) =
b	\(\sqrt{169}\) =
c	\(\sqrt{625}\) =
d	\(\sqrt{1444}\) =

Question 3

Question 3a to 3c - multiple choice question

a	576 =
	(2 × 2 × 2 × 3)2	(2 × 2 × 3 × 3 × 3)2	(2 × 2 × 2 × 3 × 3)2
b	324 =
	(2 × 2 × 3 × 3)2	(2 × 3 × 3)2	(2 × 2 × 3)2
c	1764 =
	(2 × 3 × 3 × 7)2	(3 × 3 × 7)2	(2 × 3 × 7)2