Operations Key Words
"total"
addition
Seven plus p
7 + p
Write an expression to show the total:
Dan's allowance, a, plus the $3 he already has
a + 3
a letter which represents an unknown number
variable
The product of 2 and b minus 4
2b - 4
"times as many"
multiplication
z increased by 11.
z + 11
Write an expression to show:
The 19 students in class decreased by the amount of absent students, a.
19-a
Equations have this. Expressions do not.
equal sign and/or answer
the quotient of 3 and x added to 8
3/x + 8
"difference"
subtraction
13 less than y
y -13
Greg earns $15 for each lawn he mows. Write an expression to show the total earned for l lawns.
15l
TERMS are sections of expressions and equations, that are separated by which 2 operations signs?
+ and -
*MUST have both!
the sum of 12 and the quotient of 7 and x
12 + 7/x
"quotient"
division
the quotient of 9 and x
9 / x
Drinks are $2 and Hot Dogs are $3. Write an expression to show the total cost of d, drinks, and h, hot dogs.
2d + 3h
3r means you should do what with 3 and r?
multiply
6 less than 2 times d
2d - 6
"of"
multiplication
half of c
1/2c OR c/2
Archie will earn $15 for each hour, h, he works driving for Uber. What is his profit after he pays $25.50 to fill up with gas? Write an expression to show how to calculate the profit.
15h - 25.50
What is the difference between constants and coefficients?
Constants are numbers by themselves.
Coefficients are attached to variables.
half of v increased by 6
v/2 + 6
OR 1/2v + 6