Math Vocab
Number Sense
Algebra Basics
Geometry
Data & Probability
100

This order tells you which operations to do first when solving an expression. 

What is PEMDAS? 

100

Which is larger: 0.8 or 3/4?

What is 0.8?

100

Solve: x + 5 = 12.

What is x = 7?

100

The formula for the area of a rectangle.

What is A = lw? or What is Area = length x width?

100

The average of a set of numbers.

What is the mean?

200

A number that represents an unknown value.

What is a variable? 

200

Estimate 49 x 21.

What is about $1000? 

200

Solve: 3x = 18. 

What is x = 6?
200

A triangle with one 90 degree angle.

What is a right triangle?
200

The middle number when data is ordered.

What is the median?

300

The distance around a circle. 

What is circumference? 

300

Which is closest to 19 divided by 6?

What is 3?

300

Evaluate: 6 + 4(5-2).

What is 18?

300

The longest side of a right triangle. 

What is the hypotenuse?

300

If you flip a fair coin, the probability of landing on heads.

What is 1/2 or 50/50 or 50%?

400

Two lines that never intersect and stay the same distance apart. 

What are parallel lines?

400

If something costs $10 and is discounted by 30%, about how much will you pay?

What is about $7?

400

Solve: 2x - 4 = 10. 

What is x = 7?

400

The formula used to find the distance around a circle. 

What is C = 2(pi)(r)? OR What is Circumference = 2(pi)(radius)?


400

Which is more likely: probability 0.2 or 0.6?

What is 0.6?

500

A mathematical sentence that shows two expressions are equal. 

What is an equation?

500

Which is unreasonable for 18% of 60: 5, 11, 30, or 60?

What is 60?

500

Solve: 5(x-2) = 15.

What is x = 5? 

500

Find the area of a rectangle with length 8 and width 5.

What is 40 square units?

500

If 3 out of 12 marbles are red, what is the probability of picking red?

What is 1/4 or 0.25 or 25%?