Order of Operations
4 x (2 + 4) x 6
144
Solving Equations
5n - 2 = 8n - 14
n = 4
Solve: I=Prt for t
I/pr = t
Tom has 5 candies. His friend gives him some more. Now he has 12 candies. How many candies did his friend give him?
7 candies
These numbers can be written as fractions
Rational Numbers
(13 - 6) + (5 - 3) + 20
29
Solving Equations
-4(-8p + 1) = -4 - 8p
p = 0
Solve Ax + By = C for x
y= C-By/A
A child's piggy bank has twice as many quarters as dimes. If there are 15 coins in total, how many dimes are there?
5 dimes
These rational numbers are referred to as "the counting numbers" and they include 1, 2, 3,
Natural Numbers
5 x 2 + (8 - 3) + 34
96
Solving Equations
6(6n - 2) = 8n - 40
n = -1
u = k/a
`solve for a`
a = k/u
Jenny spent $20 buying notebooks that cost $4 each. How many notebooks did she buy?
5 notebooks
Classify the number in as many sets as possible: -6
Integer, Rational, Real
10 x 8 + 82 + (5-2)
147
Solving Equations
5x + 5 + 4x = 4 - 3x + 6
x= 5/12 or x= 0.41667
Solve 2n2= 6m for n
n = square root of 3m
The sum of a number and 6 equals 17. What is the number?
The number is 11
Classify the number in as many sets as possible:
8/2
Natural, Whole, Integer, Rational, Real
(6 x 2) x (4 x 4)
192
Solving Equations
-5(8n - 4) - n = - 16 - 5n
n = 1
-9x - g=-28g
solve for x
x = 3
A class has 30 students. There are 8 more girls than boys. How many boys are in the class?
11 boys
List two examples of irrational numbers.
Pi, e, and non-perfect squares