Expressions
What does an expression NOT have?
Equal sign (=)
What does E stand for in PEMDAS?
Exponents
|-17|=
17
What is the additive identity?
0
x + 5 = 9
x = 4
Which of these is an expression?
a) 3x + 4 = 10
b) 7x + 2y
c) 3a + 2b = 4c
b) 7x + 2y
Simplify:
3^2-4*2
1
Write these numbers in order from least to greatest:
-12, -14, 0, 9, -5, 4, -2, 7
-14, -12, -5, -2, 0, 4, 7, 9
Which property is this?
3 + 5 = 5 + 3
Commutative
6 = y - 11
y = 17
Write an expression:
4 more than a number
4 + x
or
x + 4
Evaluate the expression for a = 3
(a-5)+2a
4
40 - ( -14) =
54
Which property is this?
(4+6+x)*0=0
Property of zero
3x = -36
x = -12
Write an expression:
The product of 5 and a number
5x
Evaluate the expression for x = 5
(3x+1)/(x^2-21)
4
-15*23=
-345
What is the multiplicative inverse of
5/7
7/5
j/8=-17
j = -136
Write an expression:
The quotient of 3 times a number and 7
(3x)/7
Evaluate the expression for m = -3
|m-11|+3m*2m-8
60
(-133)/(-7)=
19
Fill in the blank to make this show the distributive property:
5(3x + 8) = __________
5*3x+5*8
or
15x + 40
-9x=-126
x = 14