Expressions
Evaluating expressions
Order of Operations
order of operations with expressions
Verbal expressions to Algebraic expressions
100
What is the difference between an expression and an equation
An expression does not have an equal sign. An equation does.
100
What does evaluate mean?
Evaluate means to plug in a given value and solve
100
What is the strategy we use for order of operations
PEMDAS
100
Find the mistake in the following problem:
16 - 10/2
6/2
3
The person subtracted first instead of dividing
100
three plus a number
3 + X
200
What is the constant in the expression 2x+ 5
5
200
Evaluate the expression 2x + 3 for x=3
9
200
What does the P in PEMDAS stand for?
Parenthesis
200
Solve the following expression using order of operations: 4^3 - 16 ÷ 2
56
200
two more than twice a number
2 + 2x
300
Name the coefficient/s in the following expression:
3x + y - 3
3 and 1
300
Evaluate the expression 16 - 10 ÷ x for x=2
11
300
When using PEMDAS, which operation comes before Division?
Multiplication
300
2 × 6 – 18 × 5 + 80 ÷ 20
-82
300
three less than three times a number
3x - 3
400
When a variable is next to a number what operation is occurring between the number and the variable
Multiplication
400
Evaluate the expression 2(x + 5) - X for x = 4
14
400
If the expression begins with division such as 10/2 x 5, which operation do we do first?
Division
400
88 ÷ 11 – 9 × 4
- 28
400
five less that Charlie's age
C - 5
500
What is an expression?
An expression is al algebraic sentences containing numbers, operators and variables
500
evaluate the expression: 1/2x - 2 for x=6
1
500
Does the order of operations matter when adding or subtracting? why or why not?
no, because we get the same answer
500
20/15 or 4/3 or 1.33
500
the quotient of 4 and a number
4/n