Question Video: Multiplying By 3 Using Repeated Addition Method Mathematics • 3rd Grade

In multiplying by 3, each row is 3 more than the previous one. Complete the following: 4 × 3 = _. Complete the following: 5 × 3 = _.

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Video Transcript

In multiplying by three, each row is three more than the previous one. One times three equals three, two times three equals six, three times three equals nine. Complete the following: Four times three equals what. Complete the following: Five times three equals what.

This question is all about multiplying by three. We’re shown some models and told that each row is three more than the previous one. One times three is three, two times three is six, and three times three is nine. We have to complete four times three and five times three.

We already know that one times three is three, two times three is six, and three times three is nine. So, four times three is three more than nine. Four times three is 12. And we know that five times three is three more than 12. Three more than 12 is 15. So, five multiplied by three equals 15. The missing numbers are 12 and 15. Four times three equals 12, and five times three equals 15.

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