What is the unknown number in an equation?
Variable
4a + 20a
24a
2 (x + 8)
2x + 16
What is 2( a + 3) if a =2
10
Are natural numbers also whole numbers?
Yes
What is the name of the number multiplied by the variable?
Coefficient
3b - 10b + 6c + 18c
-7b + 24c
-4 ( 3x + 6)
-12x - 24
Are whole numbers irrational numbers?
No
What are the parts of an equation or expression called?
Terms
72c + 8 - 14e - 5c + 2
67c - 14e+10
(7c - 6) 2
14c -12
Integers are also whole numbers. T or F
False
A number that stands alone in an equation is called a _________ ?
Constant
-13x + 10y+ 5 - 2y + 13x + 62
8y + 67
5(2x + 3) + 8 (x +2)
10x +15 + 8x +16
18x + 31
Pi is an example of a rational number. T or F
F
What is the inverse of addition, and the inverse of multiplication?
Subtraction, Division
10k-6k-20n+6p-13+3n+15
4k-17n+6p+2
-6(8a - 3b + 7)
-48a +18b -42
Rational numbers are fractions, repeating decimals, mixed numbers, percentages, non-repeating decimals.
T or F
T