Variables
Written Expression
Properties of operations
Solve for missing number
Solve
100
What is a variable?
A variable is a symbol, usually a letter that represents an unknown number.
100
36 + m = 54
How do you find the missing variable in this equation?
100
What operation is being used? 4 + 5 = 5 + 4
4 + 5 = 5 + 4 = the Commutative property of addition
100
___ X (14 x 32) = (5 x 14) x 32
___ X (14 x 32) = (5 x 14) x 32 = 5 X (14 x 32) = (5 x 14) x 32
100
23x when x = 10
23x when x = 10 = 230
200
What is the variable in this expression. X + 3
The variable is the letter X
200
Write an Algebraic expression M bicycles added to 18 bicycles.
M bicycles added to 18 bicycles = M + 18
200
What operation is being used? 12 x 5 = 5 x 12
12 x 5 = 5 x 12 = The commutative property of multiplication.
200
5 +23 +4 = 23 + 4 + ____
5 +23 +4 = 23 + 4 + ____ = 5
200
B + 4 + 10 when B = 2
B + 4 + 10 when B = 2 2 + 4 + 10 = 16
300
When a variable touches a number what is the operation?
The operation is multipication.
300
Write an Algebraic expression eleven times a number Z =
eleven times a number Z = 11Z
300
What operation is being used? 3 + (4 + 5) = (3 + 4) + 5
3 + (4 + 5) = (3 + 4) + 5 = the associative property of addition
300
7 x 6 = 6 x __
7 x 6 = 6 x __ = 7
300
Is 4 + 5 + 6 equal to 6 + C + 4 when C equals 5
Yes, 4 + 5 + 6 equal to 6 + C + 4 when C equals 5 because of the comutative property of addition or because both sides equal 15
400
Solve F4 when F = 4
F4 = 4 x 4 = 16
400
Write an Algebraic expression 4 less than 5 times a number G
4 less than 5 times a number G = 5G-4
400
What operation is being used? (3 x 8 ) x 4 = (4 x 3) x 8
(3 x 8 ) x 4 = (4 x 3) x 8 = The associative property of multiplication
400
(1 x 2) x 3 = __ x (2 x 3)
(1 x 2) x 3 = __ x (2 x 3) = 1
400
What is the value of X when X + 3 = 10
The value of X is 7 when X + 3 = 10
500
If Dan bakes apples and gives 4 apples away, what is the variable?
The variable is the number of apples Dan baked. We do not know how many he baked.
500
Write an Algebraic expression 5 more than the product of X and 9
5 more than the product of X and 9 = 9x+5
500
What operation is being used? 24 x 1 = 24
24 x 1 = 24 = The identity property of multiplication
500
(43 x 1) x 4 = __ x 43
(43 x 1) x 4 = __ x 43 = 4 Identity property of multiplication
500
What do you solve first in this algebraic expression 12 + 15 x 5 - (A x 6)
In the expression 12 + 15 x 5 - (3 x 6) the first part of the problem solved is what is in the parenthesis (A x 6)
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