NYS COMMON CORE MATHEMATICS CURRICULUM
Lesson 24
6•4
Lesson 24: True and False Number Sentences Classwork Opening Exercise State whether each number sentence is true or false. If the number sentence is false, explain why. 1.
4
5
9 2.
3∙6
18 3.
32
64
4
4.
78
15
68 11
12 5.
22
Example 1 Write true or false if the number substituted for results in a true or false number sentence. Substitute with 4
32 8 3
30 10 2 2
4 30
38
8 8 4 2 0 10 Lesson 24: Date: © 2013 Common Core, Inc. Some rights reserved. commoncore.org True and False Number Sentences
4/3/14 S.103
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NYS COMMON CORE MATHEMATICS CURRICULUM
Exercises Lesson 24
6•4
Complete the following problems in pairs. State when the following equations and inequalities will be true and when they will be false. 1.
15
45 2.
25
10 3.
56
2 12 4.
5.
45
29 6.
4
16 7.
3
24 Lesson 24: Date: © 2013 Common Core, Inc. Some rights reserved. commoncore.org True and False Number Sentences
4/3/14 S.104
This work is licensed under a Creative Commons Attribution‐NonCommercial‐ShareAlike 3.0 Unported License.
NYS COMMON CORE MATHEMATICS CURRICULUM
Lesson 24
6•4
Identify all equality and inequality signs that can be placed into the blank to make a true number sentence. 8.
15
9 ______ 24 9.
8 ∙ 7 ______ 50 10.
______10 11. 34 ______17 ∙ 2 12. 18 ______ 24.5
6 Lesson 24: Date: © 2013 Common Core, Inc. Some rights reserved. commoncore.org True and False Number Sentences
4/3/14 S.105
This work is licensed under a Creative Commons Attribution‐NonCommercial‐ShareAlike 3.0 Unported License.
NYS COMMON CORE MATHEMATICS CURRICULUM
Lesson 24
6•4
Problem Set State when the following equations and inequalities will be true and when they will be false. 1.
36
9 2.
67
15 3 3.
4.
10
42 8
5.
35 6.
32
64 7.
10
7 8.
42
8
9.
14 Lesson 24: Date: © 2013 Common Core, Inc. Some rights reserved. commoncore.org True and False Number Sentences
4/3/14 S.106
This work is licensed under a Creative Commons Attribution‐NonCommercial‐ShareAlike 3.0 Unported License.