1.9 Using Multiplication Facts to Find Division Facts

1.9 Using Multiplication Facts to Find Division Facts

Review from yesterday:

INVERSE OPERATIONS: operations that can undo each other. 



Addition and subtraction are inverse operations

Multiple Choice

What is the INVERSE OPERATION of MULTIPLICATION?

• addition

• subtraction

• division

• fact family

Multiple Choice

What is the answer to a DIVISION problem called?

• sum

• difference

• product

• quotient

Multiple Choice

What is the answer to a MULTIPLICATION problem called?

• sum

• difference

• product

• quotient

Multiple Choice

What is the answer to a SUBTRACTION problem called?

• sum

• difference

• product

• quotient

Multiple Choice

What is the answer to an ADDITION problem called?

• sum

• difference

• product

• quotient

Let's think about the rules for dividing with 0 and 1 that we learned yesterday.

• A number divided by 1 is that number. 

• A number divided by itself (except 0) is 1.

• Zero divided by a number is 0.

• You can't divide a number by 0.

• GET READY TO TYPE IN YOUR ANSWERS TO THE PROBLEMS ON THE NEXT SLIDE.

Fill in the Blank

0 $\div$ 2 =

Fill in the Blank

4  $\div$   4  =

Fill in the Blank

11 $\div$  1 =

YOUR I CAN STATEMENT TODAY IS:

I CAN USE MULTIPLICATION FACTS TO HELP ME SOLVE DIVISION FACTS.

FACT FAMILY

 a fact family is a set of related facts using inverse operations

Multiple Select

Choose ALL the equations that show a correct fact family relationship for the numbers 2, 4, and 8?

•  $2\times8=4$  

•  $4\times2=8$  

•  $8\div4=2$  

•  $8\div2=4$  

•  $8\times2=16$  

Multiple Choice

Which multiplication fact can help us solve the problem        $27\div9=$  

•  $1\times9=9$  

•  $9\times3=27$  

Multiple Choice

 $24\div4=$  

• 12

• 8

• 4

• 6

Multiple Choice

 $66\div6=$  

• 11

• 10

• 8

• 6

Multiple Choice

 $?\times6=42$  

• 5

• 6

• 7

• 8

Multiple Choice

A sunflower is 2 feet tall. How tall will it be when it grows 6 times as tall?

• 2

• 4

• 8

• 12

Multiple Choice

Matt wants to buy 28 bouncy balls as birthday party favors. They come in packs of 7. How many packs will he need to purchase?

• 4

• 3

• 2

• 1

Poll

How ready are you to start your practice page?!

• Super ready!

• As ready as ever!

• I'm always ready!