Squares and Square Roots

169

• Is a perfect square.
• Is not a perfect square.

Which of the following is a perfect square?

• 39

• 50

• 24

• 81

Which of the following is NOT a perfect square?

• 1

• 4

• 100

• 8

The √21 is between which two integers?

• 5 and 6

• 20 and 22

• 4 and 5

• 10 and 11

The √40 is between which two integers?

• 39 and 41

• 6 and 7

• 5 and 6

• 19 and 21

256 = ______

• 16³
• 16²
• 16
• 15

19² = _____

• 400
• 360
• 324
• 361

15²

• 196
• 289
• 256
• 225

√49

• 5
• 3
• 6
• 7

Which would be the next number in the pattern? 
36, 49, 64, 81 __

• 82
• 18
• 64
• 100