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Question Video: Finding the Missing Numbers in Multiplication and Division Fact Families Related to an Array

Use the array to fill in all the missing numbers in these related facts. 6 × 4 = _, 4 × _ = 24, 24 ÷ 6 = _, _ ÷ 6 = 4.


Video Transcript

Use the array to fill in all the missing numbers in these related facts.

Let’s start with the first fact, six times four. This array has six columns and four rows. If we count all the blocks, we’ll be able to find out what six times four equals. One, two, three, four, five, six, seven, eight, nine, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24. 24 squares in the array tell us that six times four equals 24.

And likewise for the next problem, four times six equals 24.

Our division problem is a little bit different. It says 24 divided by six. We need to use our array, the 24 squares, and divide them into six groups. We can do that by breaking up the six columns. If we consider each column a group, how many squares are in each column? Each column has four squares. 24 divided into six groups gives us four in each group.

Our last problem says blank divided by six equals four. What number if you divide that into six gives you four? We’ve already found that 24 divided by six equals four. An array can help us visualize multiplication and division problems like these.

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