Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott

Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott

Vocabulary Copyright © 2010 Kelly Mott

6 ÷ 2 = 3 The _____________________is the number that is divided. It represents the total number of items present. Division Vocabulary Copyright © 2010 Kelly Mott

6 ÷ 2 = 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the number you divide by.

6 ÷ 2 = 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the answer in division

6 ÷ 2 = 3 Dividend Quotient Divisor LABEL THE PARTS: DRAW A LINE Copyright © 2010 Kelly Mott

2 6 The _____________________is the number that is divided. It represents the total number of items present. 3 Division Vocabulary Copyright © 2010 Kelly Mott

2 6 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the number you divide by.

2 6 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the answer in division.

2 6 Quotient Divisor Dividend 3 Copyright © 2010 Kelly Mott LABEL THE PARTS: DRAW A LINE

Multiplication and division are ____________. You can solve division problems by using the inverse operation. Inverse means _________________________. Copyright © 2010 Kelly Mott Division Vocabulary

Inverse Operation Part 1 Copyright © 2010 Kelly Mott

Inverse Operation: Practice x x Copyright © 2010 Kelly Mott

Inverse Operation: Practice x x Copyright © 2010 Kelly Mott

Inverse Operation: Practice x x Copyright © 2010 Kelly Mott

Inverse Operation: Practice x x Copyright © 2010 Kelly Mott

Inverse Operation Part 2 Copyright © 2010 Kelly Mott

14 ÷ 2 = Ask yourself: 2 times what = 14. Copyright © 2010 Kelly Mott Inverse Operation: Practice 1

18 ÷ 3 = Ask yourself: 3 times what = 18. Copyright © 2010 Kelly Mott Inverse Operation: Practice 2

20 ÷ 4 = Ask yourself: 4 times what = 20. Copyright © 2010 Kelly Mott Inverse Operation: Practice 3

35 ÷ 5 = Ask yourself: 5 times what = 35. Copyright © 2010 Kelly Mott Inverse Operation: Practice 4

Checking Division Part 1 Copyright © 2010 Kelly Mott

Unit 5 Lesson 2: Checking Division You can check division by using the inverse operation ( by _____________________). Example:Check: Copyright © 2010 Kelly Mott Checking Division: Practice 1

Unit 5 Lesson 2: Checking Division Example:Check: Copyright © 2010 Kelly Mott Checking Division: Practice 2

Unit 5 Lesson 2: Checking Division Example:Check: Copyright © 2010 Kelly Mott Checking Division: Practice 3

Unit 5 Lesson 2: Checking Division Example:Check: 2 16 Copyright © 2010 Kelly Mott Checking Division: Practice 4

Unit 5 Lesson 2: Checking Division Example:Check: 4 28 Copyright © 2010 Kelly Mott Checking Division: Practice 5

Unit 5 Lesson 2: Checking Division Example:Check: 5 55 Copyright © 2010 Kelly Mott Checking Division: Practice 6

Checking Division Part 2 Copyright © 2010 Kelly Mott

Example: Check: 12 ÷ 2 = 6 Copyright © 2010 Kelly Mott Checking Division: Practice 1

Example: Check: 15 ÷ 3 = 5 Copyright © 2010 Kelly Mott Checking Division: Practice 2

Example: Check: 32 ÷ 4 = Copyright © 2010 Kelly Mott Checking Division: Practice 3

Example: Check: 25 ÷ 5 = Copyright © 2010 Kelly Mott Checking Division: Practice 4

Example: Check: 40 ÷ 5 = Copyright © 2010 Kelly Mott Checking Division: Practice 5

PAM Problems Copyright © 2010 Kelly Mott

1. Katrina writes 6 ÷ 2 = 3. What two multiplication sentences can she use to check her answer? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott

2. Ramon has 8 bird s in 2 cages. Each cage has the same number of birds in it. How many birds are in each cage? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott

How did you do? Copyright © 2010 Kelly Mott

HOMEWORK Math Steps Pages: Teacher Worksheets: Re-teach Page: 90 Copyright © 2010 Kelly Mott