Simple Squares and Square Roots

Which number is closest to the approximate value of √380?

• 18.5

• 19

• 19.5

• 20

2² = _____

• 2

• 6

• 4

• 16

121 = ______

• 11²

• 12

• 11

• 112

13² = ______

• 225

• 196

• 169

• 166

19² = _____

• 400

• 360

• 324

• 361

• √81 = 9
• 9 ÷ 9 = 1
• 9 × 2 = 18
• √9 = 3

• √x = 7
• x² = 7
• 49² = x
• √49 = x

• 25² = x
• x² = 5
• x² = 25
• √25 = x²

Mr. Sansonetti wants to buy the iPod shuffle. If the area of the iPod was 9 cm², how long was the side of the iPod shuffle?

• 3 cm

• 9 cm

• 3 in

• 4 cm

What is the square root of 100?

• 10

• 200

• 50

• 1000