Definitions
This is a letter used to represent an unknown number.
What is a variable?
This is the answer to an addition problem.
What is a sum?
The sum of x and 45.
x + 45
15 + (x - 20) when x =0
-5
12.22 + 3a when a=4.5
25.72
These are the 'chunks' of expressions separated by + or - signs.
What are terms?
This is the answer to a multiplication problem.
What is a product?
A number divided by 12.
a/12
3b - 9 when b=(-3)
-18
5.1x - 3.5 when x=5
22
This a term without a variable, usually shown as a number.
What is a constant?
This is the answer to a subtraction problem.
What is a difference?
8 more than the product of 3 and v.
3v + 8
(-56)/y + 22 when y=(-7)
30
9.99x + 12.99y when x=6 and y=2
85.92
This is the number that is multiplied by a variable, usually shown 'touching' the variable.
What is a coefficient?
This is the answer to a division problem.
What is a quotient?
6 less than k
k - 6
5x + 3y when x=9 and y=12
81
(6.06 + b)/2 when b=4.2
5.13
Numbers that are part of the earliest counting systems are known as these kinds of numbers.
What are natural numbers?
This is a number's distance from zero.
What is absolute value?
15 less than the quotient of a and b
(a/b) - 15
ab - c when a=4, b=10, and c=11
29
7.25xy when x=2 and y=1.06
15.37