Perfect Square
Estimate the Square Root
Estimate the Square Root
100
What is the square root of 4?
2
100

Estimate the square root of 7.

2.645

100

Estimate the square root of 98.

9.899

200
What is the square root of 25?
5
200

Estimate the square root of 18.

4.242

200

Estimate the square root of 80. 

8.944

300
What is the square root of 100?
10
300

Estimate the square root of 32.

5.656

300

Estimate the square root of 11. 

3.316

400
What is the square root of 169?
13
400

Estimate the square root of 77.

8.774

400

Estimate the square root of 50.

7.071

500
What is the square root of 225?
15
500

Estimate the square root of 130.

11.401

500

Estimate the square root of 2. 

1.414

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