Unit 2 Review: Multiplication

Which of these is a multiple of 4?

• 23
• 42
• 32
• 18

Which of these are the multiples of 9?

• 9, 18, 27, 36, 44
• 3, 6, 9, 12, 15
• 9, 19, 29, 39, 49
• 9, 27, 45, 72, 81

Which factor do these multiples belong to? 36, 42, 48

• 5
• 6
• 7
• 8

Which set of numbers contains all prime numbers?

• 2, 5, 7, 9
• 3, 6, 12, 16 
• 5, 7, 11, 13
• 4, 18, 32, 49

What makes a number composite?

• A composite number is always even.
• A composite number has more than two factors.
• A composite number can always be divided by 3.
• A composite number has exactly two factors, 1 and itself.

How many prime numbers are there from 0 to 15?

• 4
• 6
• 7
• 9

What are all the factors of 12?

• 1, 2, 3, 4, 6, 12
• 2 and 6
• 1 and 12
• 2, 4, 6, 8, 10, 12

Which of these numbers is NOT a factor in the math sentence 4 x 6 = 24?

• 4
• 6
• 24

What are all the factors of 11?

• 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
• 0, 1, 11
• 1 and 11
• 5 and 6

Solve.  6,802 x 5

• 32,105
• 34,015
• 34,010
• 34,060