3.OA 1 - Understand Multiplication

Question 1

What are some strategies we use for multiplication?

Accepted Answer

repeated addition, skip counting, arrays

Question 2

What is the repeated addition expression for the array?

Accepted Answer

3 + 3 + 3 + 3 + 3

Question 3

Are these two arrays equal?

Accepted Answer

yes

Question 4

Why are these NOT arrays?

Accepted Answer

Because they do not have equal rows and columns

Question 5

Which equation matches the number line?

Accepted Answer

5 x 2 = 10

Question 6

Which repeated addition sentence shows 5 x 2?

Accepted Answer

2+2+2+2+2

Question 7

​Tim has 5 baskets of apples. Each basket ​has 8 apples. ​Which expression shows how many apples Tim ​has in all?

Accepted Answer

8+8+8+8+8

Question 8

What are the factors in these arrays?

Accepted Answer

4 and 6

Question 9

There were 9 classrooms with 4 tables in each classroom. Which expression best represents the word problem?

Accepted Answer

9 × 4

Question 10

Which equation matches the number line?

Accepted Answer

4 x 5 = 20

Question 11

What is the repeated addition expression for the array?

Accepted Answer

4 + 4 + 4

Question 12

Which of the following multiplication expressions best describes this set of equal groups?

Accepted Answer

5 x 6

Questions 12