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Create Expressions
Create Equations
Solve Equations
Properties of Addition
Anything Goes
100
Eleven cars were in the race. Seven more cars joined the race.
What is 11 + 7
100
Erin had 15 colored pencils. After she put some in her locker, she had 10 left. How many colored pencils did she put in her locker?
What is 15 - n = 10, n = pencils put in locker
100
9 + n = 16
What is n = 7
100
Name the Addition Property used. 14 + 65 = 65 + 14
What is the Commutative Property
100
An equation has "this" and an expression does not.
What is an equal sign
200
Sam had 23 books. Ann gave him 7.
What is 23 + 7
200
Joey had some books. He got 6 more from the library and then he had 10. How many books did he have to start?
What is n + 6 = 10, n = books to start with
200
n + 12 = 29
What is n = 17
200
Name the Addition Property used. (10 + 4) + 3 = 10 + (4 + 3)
What is the Associative Property
200
These 2 letters do NOT make good variables.
What is x and t
300
Don had 37 toys, but he lost some.
What is 37 - n, n = toys lost
300
A number is subtracted from 22 and the result is 15.
What is 22 - n = 15, n = number that is subtracted
300
n - 23 = 34
What is n = 57
300
Solve the equation. n = ? n + 43 = 43
What is n = 0
300
This is what you should do when you get an answer to an equation.
What is CHECK your ANSWER
400
Dina had some pencils. She bought 5 more.
What is n + 5, n = some pencils
400
Jane went to the pet store and saw 5 birds and some cats. Overall, she saw 24 animals. How many cats did she see?
What is 5 + n = 24, n = cats she saw
400
52 - n = 18
What is n = 34
400
Solve the equation and tell what Addition Property is used. 19 + 30 = 30 + n
What is n = 19 AND the Commutative Property
400
This is what Miss Fancher calls all of her work she does off to the side.
What is a chicken scratch
500
I made 15 pretzels. I ate one and made some more.
What is 15 - 1 + n, n = more pretzels
500
Tate had 12 CD's and got more for her birthday. Now she has 21 CD's. How many CD's did she get for her birthday?
What is 12 + n = 21, n = number of CD's she got
500
n + 123 = 258
What is n = 135
500
Solve the equation AND name the Addition Property used. 123 + (984 + 1,458) = (123 + n) + 1,458
What is n = 984 AND the Associative Property
500
The 5 things an equation has.
What is 2 numbers, a variable, an operation sign, and an equal sign.