Repeated Addition and Multiplication Concepts

This lesson teaches how to solve multiplication problems by expressing them as repeated addition. It begins by explaining addition as finding the sum and introduces multiplication as repeated addition. The lesson demonstrates this concept with examples, including a Halloween-themed problem where Casper collects candy. It also covers the commutative property and provides practice problems to reinforce the concept. By the end, students will understand how to convert multiplication into repeated addition and solve problems using this method.

What is the sum of 3 plus 3 in the example given about Anne's crayons?

• 5

• 6

• 7

• 8

How can the multiplication expression 3 times 7 be represented as repeated addition?

• 3 + 3 + 3 + 3 + 3 + 3 + 3

• 3 + 7

• 7 + 3 + 3

• 7 + 7 + 7

What does the commutative property allow us to do with the factors in multiplication?

• Add them in any order

• Multiply them in any order

• Divide them in any order

• Subtract them in any order

How many pieces of candy does Casper receive in total from six houses if he gets two pieces from each?

• 16

• 14

• 10

• 12

Which of the following represents 6 times 2 as repeated addition?

• 6 + 6

• 2 + 2 + 2 + 2 + 2 + 2

• 6 + 2 + 2

• 2 + 6

How can 4 times 6 be expressed as repeated addition?

• 4 + 4 + 4 + 4 + 4 + 4

• 6 + 6 + 6 + 6

• 4 + 6

• 6 + 4 + 4

Which of the following is NOT a correct way to express 4 times 6 as repeated addition?

• 6 + 6 + 6 + 6

• 4 + 6 + 4 + 6

• 6 + 6 + 6 + 6 + 6 + 6

• 4 + 4 + 4 + 4 + 4 + 4

What is the result of adding six four times?

• 18

• 24

• 20

• 22

What is the benefit of solving multiplication problems by turning them into repeated addition?

• It helps until multiplication facts are memorized

• It is faster than memorization

• It is the only way to solve multiplication

• It makes the problem harder

Once multiplication facts are memorized, what advantage does it provide?

• A way to solve division

• A way to avoid addition

• No advantage

• A shortcut for adding