LMS Prealgebra
Terms
undefined, object
copy deck

Identify the property:
a * b = b * a  Commutative Property of Multiplication

Identify the property:
3 * 0 = 0  Property of zero

Identify the property:
a + b = b + a  Commutative Property of Addition

Identify the property:
(a + b) + c = a + (b + c)  Associative Property of Addition

Identify the property:
(ab)* c = a * (bc)  Associative Property of Multiplication

Identify the property:
5 * 1 = 5
a * 1 = a  Identity Property of Multiplication

Identify the property:
5 + 0 = 5
a + 0 = a  Identity Property of Addition

Rewrite using the Distributive Property of Multiplication:
4(a + 6)  4*a + 4*6

Simplify using the Distributive Property of Multiplication:
8(y + 8) + 3 
8y + 8*8 + 3
8y + 64 + 3
8y + 67  What is a variable?
 A variable represents a number.

Write an expression for:
a number increased by eight 
n + 8
any letter is correct 
Write an expression for:
three times a number decreased by 10 
3n  10
any letter is correct 
Write an expression for:
three times a number divided by 6 
3n/6
any letter is correct 
Write an expression for:
six less than a number 
n  6
any letter is correct 
Write an expression for:
four times a number increased by one divided by two times another number less three 
4n + 1 any two letters are
 correct
2y  3  What is the order of operations?

parentheses
exponents
multiply & divide left to rt
add & subtract left to right 
Evaluate for c = 3, m = 2:
2c + 5(m  1) 
2c + 5(m  1)
2c + 5(2  1)
2c + 5(1)
2*3 + 5
6 + 5
11 
Evaluate for a = 5, b = 7, c = 3
3(a + 2) + b * 6 + c 
3(a + 2) + b * 6 + c
3(5 + 2) + 7 * 6 + 3
3(7) + 7 * 6 + 3
21 + 42 + 3
66 
Rewrite using the distributive property:
5u + 5y  5(u + y)

Simplify:
6(a + 2) + 3 
6(a + 2) + 3
6a + 12 + 3
6a + 15