4th Grade Multiplicative Comparison Quiz: 10 Questions with Explanations

A \(12\)B \(35\)C \(2\)D \(57\)

5 times as many as 7 is 5 × 7 = 35. Adding 5 and 7 gives 12, which is not a times-as-many comparison.

A \(42 = 6 + 7\)B \(42 = 7 \times 7\)C \(42 = 6 \times 7\)D \(6 = 42 \times 7\)

“6 times as many as 7” means 6 × 7, and 6 × 7 = 42. Addition is for ‘more than’ comparisons.

A Ana has 3 more stickers than Ben.B Ana has 3 fewer stickers than Ben.C Ana has 3 times as many stickers as Ben.D Ana has 3 stickers and Ben has 4.

‘Times as many’ tells you to multiply. ‘More’ and ‘fewer’ are additive comparisons.

A 5B 16C 4D 24

Mia’s 20 books are made of five groups of 4, so she has 5 times as many. The number 16 is how many more books Mia has.

A \(17\)B \(1\)C \(81\)D \(72\)

8 times as many as 9 is 8 × 9 = 72. Adding gives 17.

A 54B 7C 72D 8

Divide: 63 ÷ 9 = 7. Subtracting gives 54, which is how many dollars more the game costs.

A 7 feetB 24 feetC 32 feetD 112 feet

28 = 4 × b, so b = 28 ÷ 4 = 7. Adding or multiplying the wrong way gives 32 or 112.

A Ana has 6 times as many stickers as Ben.B Ana has twice as many stickers as Ben.C Ana has 3 times as many stickers as Ben.D Ana has 6 more stickers than Ben.

‘More than’ is additive. Each other choice uses ‘times as many’, which is multiplicative.

A \(36\)B \(24\)C \(15\)D \(4\)

Diego has 3 × 12 = 36 pencils. Then 36 – 12 = 24 more. The number 36 is how many Diego has in all.

A \(23\)B \(20\)C \(12\)D \(60\)

Zoe has 4 × 5 = 20 books. Max has 3 more: 20 + 3 = 23. The number 20 is Zoe’s amount.