fourth grade unit 1

Is 15 a prime number?

• YES

• NO

Which number is a multiple of 5?

• 12

• 24

• 35

• 9

Is 20 a prime number?

• YES

• NO

Is 21 a prime number?

• YES

• NO

Is 13 a prime number?

• YES

• NO

18, 24, 30, 36, 42 are all multiples of...

• 4

• 6

• 8

• 10

Which is a factor of 18?

• 3

• 4

• 5

• 7

Which is a factor of 25?

• 3

• 4

• 5

• 7

Which is a factor of 14?

• 3

• 4

• 5

• 7

Which number is a multiple of 4?

• 14

• 24

• 35

• 9