Show:
Evaluating
Numerical Expressions
Evaluating
Variable Expressions
Writing Variable Expressions
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100
The answer when evaluating: 7 − 12 ÷ 2 + 1
What is 2
100
Given k = 3, the answer when evaluating: 14 − 5k
What is -1
100
The variable expression represented by: "Four more than a number"
What is n + 4 or 4 + n because addition is commutative
100
The vocabulary word that means the "number in front of a variable, for example the 2 in the term 2x."
What is the coefficient
200
The answer when evaluating: 15 + (16 + 2) ÷ 3
What is 21
200
Given x = 4, the answer when evaluating: 3x^2 - 9
What is 39
200
The variable expression represented by: "Five less than twice a number"
What is 2n − 5
200
The vocabulary term that means the number without a variable in an algebraic expression. For example the 5 in the expression below: 2x + 5
What is the constant or the constant term
300
The answer when evaluating: 54 ÷ 3^2 − 3 x 2
What is 0
300
Given x = 2 and y = 3 the answer when evaluating: (9x + 3) ÷ (2y + 1)
What is 3
300
The variable expression represented by: "The difference between twelve and twice a number"
What is 12 - 2n
300

What are the steps of order of operations in order?

Parentheses, exponents, multiplication and division, addition and subtraction

400
The answer when evaluating: 50 − 5 x 4^2 ÷ 2
What is 10
400
Given x = 2.3, y = 3.7 the answer when evaluating: 2x − y
What is 0.9
400
The variable expression represented by: "The quotient of a number cubed and five"
What is n^3/5
400

How do we do order of operations involving only multiplication and division or addition and subtraction ?

From Left to right

500
The answer when evaluating: [60 − 2(4^2 + 8)] ÷ 4
What is 3
500
Given x = 4, y = 2 and z = 6; the answer when evaluating: (2x)^2 + 2z^2
What is 136
500
The variable expression represented by: "Four times the sum of seven and a number"
What is 4(7 + n)
500

Simplify the expression 12(x +1)

What is 12x + 12