O.A. 1 Multiplicative Comparison Review - Kara Demasi | Biblioteka

Watch the following videos to understand multiplicative comparisons. Make sure you are working through the problems in your notebook. When you are ready, answer the multiple choice questions below.

1

Sabina spends 10 minutes jumping rope at the gym. She spends twice as much time running. Which equation can be used to find how many minutes Sabina spends running?

A 10 × 2 = □

B 10 + 2 = □

C 10 + 2 = 2 × □

D 10 + 10 = 2 × □

1

Which of the following best describes the equation 7 × 6 = 42?

A 7 is 6 more than 42.

B 42 is 6 more than 7.

C 7 is 6 times as much as 42.

D 42 is 6 times as much as 7.

1

Hannah and Maddie were making bracelets. Hannah made 3 times as many bracelets as Maddie. If Maddie made 6 bracelets, which equation shows how many bracelets Hannah made?

A 6 ÷ 3 = 2

B 6 − 3 = 3

C

D 6 × 3 = 18

1

Which situation is represented by the equation 21 × 3 = ______?

A Paul has 21 cards. Ann has 3 more cards than Paul. How many cards does Ann have?

B Paul has 21 cards. Ann has 3 more cards than Paul. How many cards do they have together?

C Paul has 21 cards. Ann has 3 times as many cards as Paul. How many cards do they have together?

D Paul has 21 cards. Ann has 3 times as many cards as Paul. How many cards does Ann have?

1

Which of the following comparisons best represents the equation 27 = 3 × 9?

A 27 is 9 times as many as 3

B 9 is 27 times as many as 3

C 9 is 3 times as many as 27

D 3 is 9 times as many as 27