Factors, Multiples, Multiplicative Comparison Problems

There were 21 boys playing in the park. That is 3 times the number of girls who were playing. How many girls were playing in the park?

• 24 girls

• 7 girls

• 8 girls

• 18 girls

Tags

CCSS.4.OA.A.2

A food truck sold 8 times as many hamburgers as they sold hot dogs. If they sold 4 hot dogs, how many hamburgers did they sell?

• 12 hamburgers

• 24 hamburgers

• 32 hamburgers

• 36 hamburgers

Tags

CCSS.4.OA.A.2

My little brother has 10 red skittles and 2 green skittles. How many times as many red skittles does he have than green ones?

• 5 times

• 12 times

• 8 times

• 20 times

Tags

CCSS.4.OA.A.2

A pet store sold 2 cats. They sold 6 times as many dogs as they sold cats. How many dogs did they sell?

• 4 dogs

• 12 dogs

• 3 dogs

• 8 dogs

Tags

CCSS.4.OA.A.2

Vanessa read 25 books last summer. Mike read 5 books. How many times as many books did Vanessa read than Mike?

• 20 times

• 3 times

• 30 times

• 5 times

Tags

CCSS.4.OA.A.2

A number with more than 2 factors.

• Prime

• Opposite

• Composite

• Product

Tags

CCSS.4.OA.B.4

Select the prime numbers.

• 21

• 23

• 29

• 31

Tags

CCSS.4.OA.B.4

Which lists ALL the factors of 26?

• 1, 26

• 1, 2, 26

• 1, 3, 12, 26

• 1, 2, 13, 26

Tags

CCSS.4.OA.B.4

Which number is NOT prime?

• 3
• 7
• 17
• 21

Tags

CCSS.4.OA.B.4

Which of the following sentences describe a comparison using multiplication?

• 15 is 3 more than 12.

• 32 is 4 times as many as 8.

• Each two-topping pizza costs $3 more than a one-topping pizza.

• 18 is 2 less than 20

Tags

CCSS.4.OA.A.1