# Question Video: Using Group Models to Understand Multiplication by 0 and 1 Mathematics • 3rd Grade

Matthew started with 12 stars in three groups of four. 3 groups of 4, 3 × 4 = 12. Remove one group at a time. Find the missing numbers. 2 groups of 4, 2 × 4 = ＿. 1 group of 4, 1 × 4 = ＿. 0 groups of 4, 0 × 4 = ＿

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### Video Transcript

Matthew started with 12 stars in three groups of four. Three groups of four. Three times four equals 12. Remove one group at a time. Find the missing numbers. Two groups of four, two times four equals what. One group of four, one times four equals what. Zero groups of four, zero times four equals what.

Matthew started with 12 stars in three groups of four. We have to remove one group of four at a time to find the missing numbers. We know that three times four is 12. So to find two groups of four, we just need to take away one group of four. What is four less than 12? Two times four is eight. Four less than 12 is eight.

If we take away another four, we will have one group of four, which is four. One group of four or one times four is four. And to find zero times four, we just need to take away another group of four. Four take away four is zero. Zero times four equals zero.

Matthew started with 12 stars in three groups of four. And he removed one group at a time. Two groups of four or two times four equals eight. One group of four or one times four equals four. And zero groups of four equal zero.

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