Properties
The two sides of an equation stay equal when both sides the equation are multiplied by the same number.
What is Multiplication property of equality?
Andy had some baseball cards. After he bought 12 more, he had 48 cards. Write an equation to show how many cards Andy had at the start.
What is
n + 12 = 48
12 times a number g written as an algebraic expression.
What is
12g
12 x g
The number that is multiplied by the variable.
What is a coefficient?
3 x 5 x 6 = 6 x 3 x 5 is an example of this property.
What is the commutative property of multiplication?
18x = 36
Solve for x.
What is 2?
22 divided by a number s as an algebraic expression.
22÷s
The number that stands alone in an equation or expression. It does not change.
What is a constant?
(ab)c = a(bc) is an example of this property.
What is the associative property of multiplication?
Solve for x:
x - 4 = 12
What is 16?
Write an algebraic expression:
3 less than 5 times a number. Use n for the variable.
What is
5n - 3
Stands for an unknown value or number.
What is a variable?
3(5 + x) = 15 + 3x.
This is an example of this property.
What is the distributive property over addition?
x ÷ 3 = 9
Solve for x:
What is 27?
Write an algebraic expression
p pennies added to 22 pennies.
p + 22
The answer to a multiplication problem
What is a product?
The inverse of this property is the addition property of equality.
What is the subtraction property of equality?
To solve this equation, you must use this equality property.
3x = 9
What is the division property of equality?
Write an algebraic expression.
Four more than the product 3 times the number of cats. (c)
4 + 3c
3 x c + 4
(3 x c) + 4
To replace a variable with a number.
What is substitution?