Estimating Square Roots

Perfect Squares(Review)

100

The square root of 9

What is 3?

200

4²

What is 16

300

2² + 3²

What is 13?

400

The square root of 225 minus 3²

What is 15-9=6?

500

The square root of 144 minus the square root of 121

(Say your answer as a ²)

What is 1²?

Square

100

4.2²

What is 17 or 18?

200

5.3²

What is 27 or 28?

300

8.5²

What is 72?

400

12.8²

What is 164?

500

14.1²

What is 199?

Square Root

100

Square root of 4.4

What is 2.1?

200

Square root of 27

What is 5.2?

300

Square root of 140

What is 11.8?

400

Square root of 70

What is 8.3 or 8.4?

500

Square root of 228

What is 15.1?

Word Problems

100

A floor tile is 99cm² how long is one side?

What is 9.9cm?

200

The side of a die is 1.1cm, what is the are of the face?

What is 1.21cm²?

300

The length of the classroom is 13.7m, what is the area? (round to a whole number, pretend the room is a square)

What is 184m², 185m², 186m^2, 187m², 188m², or 189m²?

400

A square shaped room is 130m² what is the approximate length of one side?

What is 11.4m (or 11.5m)?

500

A right angle triangle with EQUAL base and height has an area of 2.42m² What is the base (or height)?

What is 2.2m?

Random!

100

Square root of 169

What is 13?

200

12.3²

What is 151?

300

A square has an area of 15cm² what is the side?

What is 3.9cm?

400

Square root of 20

What is 4.5?

500

A chessboard is 8.9cm long, what is the area?

What is 80cm²?