Order of Operations
9 ÷ 3² + 2 x (2 + 1)
7
-12*12=____?
-144
Solve:
3 (2y + 2b + 1)
6y + 6b + 3
5(4x + 5) = 4(2x + 4)
-9/12
What is a variable?
A letter representing an unknown value/number.
12 - (3 × 2)²
-24
-5*5=____?
-25
If x = 1 and b = 2 then what is 3x - b
3x-b
3(1) - 2
3 - 2
1
3x + 6 = 7x - 5
x=11/4
What order of operation do the following terms go with?
sum
difference
product
quotient
addition
subtraction
multiplication
division
8 ÷ 2 + 4²
20
What kind of number do you get when multiplying a positive (+) number by a negative (-) number?
A negative number (-).
If y=6 and w=5, what is the solution to 2y + 10w?
2(6) + 10(5)
12+50
62
4(2x - 1) = 12
x=2
What is the opposite operation of adding?
What is the opposite operation of division?
Subtraction.
Multiplication.
3 × 4 - 2
10
What kind of number do you get when multiplying a negative (-) number by a negative (-) number?
A positive number (+).
If y = 12, what is y / 2?
6
2x - 1 = 9
x=5
What is a negative number? Example?
What is a positive number? Example
Negative number is less than 0. Example -2
Positive number is more than 0. Example 2
What does PEMDAS stand for?
Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
What kind of number do you get when multiplying a positive (+) number by a positive (+) number?
A positive number (+).
What is the value of a variable if you increase a number by 5 and end up at 7? Write the equation.
x + 5=7
x=2
x/4 = 10
x=40
What is a variable? Give an example.
A letter that represents an unknown value/number.
x, v, m, l, z