Multiplication Using an Open Number Line

This video tutorial teaches multiplication using an open number line. It begins with an introduction to multiplication sentences and factors, followed by a review of open number lines. The tutorial demonstrates how to solve 4 * 7 using a number line and explains the commutative property of multiplication. It concludes with a word problem involving campers and canoes, solved using multiplication and number lines.

What is the product of 2 and 8 in a multiplication sentence?

• 20

• 18

• 16

• 14

How many hops of 7 are needed to solve 4 * 7 using an open number line?

• 3

• 4

• 5

• 6

What is the commutative property of multiplication?

• Multiplying by one gives the same number

• The product is always even

• Multiplying by zero gives zero

• Changing the order of factors does not change the product

How many campers can go canoeing if there are 8 canoes and each fits 3 campers?

• 24

• 21

• 18

• 27

What is the result of 8 * 3 using an open number line?

• 21

• 24

• 18

• 27