Mastering Multiplication on a Number Line

The video tutorial explains how to multiply using a number line, demonstrating with examples like 5 times 3 and 3 times 5. It introduces the commutative property of multiplication, showing that the order of numbers doesn't affect the result. The tutorial further illustrates this concept with 7 times 4 and 4 times 7, emphasizing that multiplication can be understood through counting in steps, regardless of the order of numbers.

How do you count on a number line to find the product of 5 times 3?

• Count in steps of 2, five times

• Count in steps of 3, five times

• Count in steps of 3, two times

• Count in steps of 5, three times

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CCSS.3.OA.A.1

What is the result of 5 times 3 on a number line?

• 18

• 15

• 12

• 10

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CCSS.3.OA.C.7

What is the commutative property of multiplication?

• The order of numbers does not affect the product

• The product is always even

• The product is always odd

• The product is always a prime number

Tags

CCSS.3.OA.B.5

How do you count on a number line to find the product of 3 times 5?

• Count in steps of 3, two times

• Count in steps of 5, three times

• Count in steps of 3, five times

• Count in steps of 2, five times

Tags

CCSS.3.OA.A.1

What is the result of 7 times 4 on a number line?

• 32

• 36

• 28

• 24

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CCSS.3.OA.C.7

How do you count on a number line to find the product of 4 times 7?

• Count in steps of 7, two times

• Count in steps of 2, seven times

• Count in steps of 7, four times

• Count in steps of 4, seven times

Tags

CCSS.3.OA.A.1

What is the result of 4 times 7 on a number line?

• 32

• 24

• 28

• 36

Tags

CCSS.3.OA.C.7

If you know 7 times 4, what other multiplication fact do you automatically know?

• 4 times 3

• 4 times 7

• 3 times 7

• 7 times 3

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CCSS.3.OA.C.7

Why is it useful to understand the commutative property of multiplication?

• It helps in multiplication

• It helps in subtraction

• It helps in addition

• It helps in division

Tags

CCSS.3.OA.B.5