Everyday Math Grade 4 – Lesson 1.8 Copyright © 2010 Kelly Mott.
Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott.
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Transcript of Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott.
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Unit 5 Lesson 2Inverse Operations
Copyright © 2010 Kelly Mott
![Page 2: Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/5697c0121a28abf838ccc4f4/html5/thumbnails/2.jpg)
Unit 5 Lesson 2Inverse Operations
Copyright © 2010 Kelly Mott
![Page 3: Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/5697c0121a28abf838ccc4f4/html5/thumbnails/3.jpg)
Vocabulary
Copyright © 2010 Kelly Mott
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6 ÷ 2 = 3The _____________________is the number that is divided. It represents the total number of items present.
Division Vocabulary
Copyright © 2010 Kelly Mott
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6 ÷ 2 = 3Division Vocabulary
Copyright © 2010 Kelly Mott
The _____________________is the number you divide by.
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6 ÷ 2 = 3Division Vocabulary
Copyright © 2010 Kelly Mott
The _____________________is the answer in division
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6 ÷ 2 = 3
Dividend Quotient Divisor
LABEL THE PARTS: DRAW A LINE
Copyright © 2010 Kelly Mott
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2 6The _____________________is the number that is divided. It represents the total number of items present.
3Division Vocabulary
Copyright © 2010 Kelly Mott
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2 63
Division Vocabulary
Copyright © 2010 Kelly Mott
The _____________________is the number you divide by.
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2 63
Division Vocabulary
Copyright © 2010 Kelly Mott
The _____________________is the answer in division.
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2 6
Quotient Divisor Dividend
3
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LABEL THE PARTS: DRAW A LINE
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• Multiplication and division are ____________.• You can solve division problems by using the
inverse operation.• Inverse means _________________________.
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Division Vocabulary
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Inverse Operation Part 1
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Inverse Operation: Practice 1
2 4
2 14
x
x
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Inverse Operation: Practice 2
3 12
3 18
x
x
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Inverse Operation: Practice 3
4 8
4 44
x
x
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Inverse Operation: Practice 4
5 35
5 50
x
x
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Inverse Operation Part 2
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14 ÷ 2 =
Ask yourself: 2 times what = 14.
Copyright © 2010 Kelly Mott
Inverse Operation: Practice 1
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18 ÷ 3 =
Ask yourself: 3 times what = 18.
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Inverse Operation: Practice 2
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20 ÷ 4 =
Ask yourself: 4 times what = 20.
Copyright © 2010 Kelly Mott
Inverse Operation: Practice 3
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35 ÷ 5 =
Ask yourself: 5 times what = 35.
Copyright © 2010 Kelly Mott
Inverse Operation: Practice 4
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Checking Division Part 1
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Unit 5 Lesson 2: Checking Division• You can check division by using the inverse
operation ( by _____________________).
Example: Check:
2 168
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Checking Division: Practice 1
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Unit 5 Lesson 2: Checking Division
Example: Check:
3 155
Copyright © 2010 Kelly Mott
Checking Division: Practice 2
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Unit 5 Lesson 2: Checking Division
Example: Check:
4 246
Copyright © 2010 Kelly Mott
Checking Division: Practice 3
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Unit 5 Lesson 2: Checking Division
Example: Check:
2 16
Copyright © 2010 Kelly Mott
Checking Division: Practice 4
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Unit 5 Lesson 2: Checking Division
Example: Check:
4 28
Copyright © 2010 Kelly Mott
Checking Division: Practice 5
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Unit 5 Lesson 2: Checking Division
Example: Check:
5 55
Copyright © 2010 Kelly Mott
Checking Division: Practice 6
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Checking Division Part 2
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Example: Check:
12 ÷ 2 = 6
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Checking Division: Practice 1
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Example: Check:
15 ÷ 3 = 5
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Checking Division: Practice 2
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Example: Check:
32 ÷ 4 =
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Checking Division: Practice 3
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Example: Check:
25 ÷ 5 =
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Checking Division: Practice 4
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Example: Check:
40 ÷ 5 =
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Checking Division: Practice 5
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PAM Problems
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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
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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
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How did you do?
Copyright © 2010 Kelly Mott
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HOMEWORKMath Steps Pages: 117-118Teacher Worksheets:Re-teach Page: 90
Copyright © 2010 Kelly Mott