WEBVTT
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Repeated Addition
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In this video, we will learn how to represent equal groups with a repeated addition sentence and a multiplication sentence.
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There are five monsters.
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Each monster has six eyes.
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There are five groups of six eyes.
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Think about how we can find the total number of eyes.
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This model shows five groups of six eyes.
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Noah says, “I can add.”
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Hannah says, “I can multiply.”
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Help Noah write an addition expression for the total number of eyes.
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Noah should write six plus six plus six plus six plus six.
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There are one, two, three, four, five groups of six.
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There are five sixes shown in our model.
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Help Hannah by writing a multiplication expression for the total number of eyes.
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There are five groups of six.
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So, Hannah could write five multiplied by six.
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How many eyes are there?
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We could use our knowledge of the six times table, or count in sixes.
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Six plus six plus six plus six plus six equals 30.
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Five multiplied by six equals 30.
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There are 30 eyes altogether.
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We could find our answer using a repeated addition sentence or a multiplication sentence.
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Let’s practice with one more example.
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There are six bunches of carrots.
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There are five carrots in each bunch.
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How many carrots are there altogether?
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Five plus five plus five plus five plus five plus five equals what?
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We know there are six bunches of carrots and five carrots in each bunch.
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Five plus five plus five plus five plus five plus five is the same as saying five times six.
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We can count in fives six times to find the answer, five, 10, 15, 20, 25, 30.
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Five times six or five plus five plus five plus five plus five plus five equals 30.
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There are 30 carrots altogether.
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In this video, we’ve learned how to represent equal groups with a repeated addition sentence or a multiplication sentence.