Square and Square roots

Square numbers

100

What is 2²?

4

200

What is 4²?

16

300

What is 7²?

49

400

What is 13²?

169

500

What is 16²?

256

Solving with squares

100

2² + 2²

8

200

2² + 5²

29

300

6² - 4²

20

400

(2² x 6²) - 3²

135

500

4² x (5² +3²) - 2²

540

Square root

100

What is √9?

3

200

What is √25?

5

300

What is √81?

9

400

What is √196?

14

500

What is √6.25?

2.5

Worded problems

100

A box has chocolates arranged in 5 rows and 5 columns. How many chocolates are in the box?

25

200

A square patio has 4 tiles along each side. How many tiles are there altogether?

16

300

A square game board has 9 squares along each side. How many small squares are on the board?

81

400

A square arrangement has 11 seats in each row and 11 rows. How many seats are there?

121

500

A square courtyard is 15 m long and 15 m wide. Calculate its area in square metres.

225