Quarter 2: Spiral Review # 3

1. Fill in the bubbles to match the letter of each point on the number line with its corresponding value.

2. 2. What is the greatest common factor (GCF) of 45 and 75?

• A 3

• B 4

• C 15

• D 30

Answer explanation

3. 3. Select all the expressions that are equal to 729.

• A 3 x 3 x 3 x 3 x 3 x 3

• B 3 x 3 x 3 x 3 x 3 x 3 x 3

• C 4 x 4 x 4 x 4

• D 3⁶

• E 3⁷

• C 2

Answer explanation

5. 5. For each pair of numbers, select the LCM.

6. 6. Your local radio station is having their yearly MP3 and concert ticket giveaway. For one minute, every 5^th caller will win an MP3 player and every 7^th caller will win concert tickets. You were just the first caller to win both an MP3 player and concert tickets! What number caller were you?

• A 14^th

• B 70^th

• C 35^th

• D 5^th

Answer explanation

8. 8. Select all the equations where x = 5 is a solution.

Answer explanation

2x + 4 = 14

2(5) + 4 = 14

5x = 55

5(5) = 25

6x + 3 = 14

6(5) + 3 = 33

8 + 3x = 23

8 + 3(5) = 23

6x = 30

6(5) = 30

Answer explanation

• A 21

• B 39

• C 43

• D 90