Directions Fill in the missing part of cach statement. Remember the commutative property of addition. 1. 16 +9 = 25 or 9+ = 25 2. 2x +x = 3x or x+ 2x = 3. 5p + = 12p or 7p+5p = 12p
Directions Fill in the missing part of cach statement. Remember the commutative property of addition. 1. 16 +9 = 25 or 9+ = 25 2. 2x +x = 3x or x+ 2x = 3. 5p + = 12p or 7p+5p = 12p
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Chapter 2, Lesson 1
Commutative Property of Addition
Directions Fill in the missing part of each statement. Remember the
commutative property of addition.
1. 16 +9 = 25
or
9 +
= 25
2. 2x +x= 3x
x+ 2x =,
or
3. 5p + =12p or 7p + 5p = 12p
4. 5.5 + 2.2 = 7.7
2.2 + 5.5 =
or
5. g+ 3g = 4g or
3g +
4g
6. 30k + 31k = 61k
+ 30k = 61k
or
7.
+ 15y = 18y
15y + 3y = 18y
or
8. 32,116 +
= 63,890
31,774 + 32,116 = 63,890
or
9. 4h + 8h =
8h + 4h = 12/h
or
10. 400n + 300n = 700n or
300n + 400 =
11.
+ q = 7q__or q+ 6q = 7q
Directions Solve these problems.
14. To be sure, Maura adds the numbers again,
12. Dell and Gina will put their stamps together to
make one big collection.
this time in the following order: 27 + 60. What
is her total this time?
Dell says, "Add your 50 stamps to my 85
stamps."
Gina says, "No, add your 85 stamps to my 50
stamps." Why are these statements nonsense?
15. What mathematical property do Maura's sums
illustrate?
13. Maura has 60 cents in dimes and 27 cents in
pennies. To find her total, she adds 60 + 27.
What sum does she get?
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Chapter 2, Lesson 2
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