Order of Operations
Simplify the expression: 2(15-4) + 32
31
The word sum goes with which operation?
Addition
Write x + 8 in words
The sum of x and 8
x increased by 8
The sum of x and 9
x + 9
Simplify when x = 2 and y = 3: 2x + y
7
Simplify: 62 - 3 x 5
21
Decreased by is a phrase telling us to use which operation?
Subtraction
Write x - 15 in words
15 less than x
The difference of x and 15
x decreased by 15
27 decreased by x
27 - x
Simplify when x = 5 and y = -3: xy + -x
-20
(3 x 7)2 - 8 ÷ 2
437
Name two examples of key words for multiplication
Possible answers:
Times
Product
Of
Twice a number
Write in words: 5x
The product of x and 5
5 times x
The quotient of x and 8
x ÷ 8 or x/8
Simplify when x = 8 and y = -2: x2 - 5y + 16
90
53 - 2(18 x 0.5 + 17) ÷ 4
112
Name two examples of key words for division
Possible answers:
Quotient
Divided by
Spit evenly
Write in words: 3x + 5
Triple a number increased by 5
The sum of three times a number and 5
5 more than 3 times a number
Twice a number decreased by 7
Simplify when x = 0.5 and y = 4: 9x - y2 + xy
-9.5
16 + 36 ÷ 4 - (10 + 5 x -3)2
0
Name two examples of switch phrases
Possible answers:
Less than
Subtracted from
Goes into
Write in words: x/2 - 7
7 less than the quotient of x and 2
7 subtracted from the quotient of x and 2
x divided by two decreased by 7
The sum of 15 and the quotient of x and 4
15 + x/4
Simplify when x = 9, y = -3, and z = 12: x2 + 5y - 3z
30