7th grade Math Review

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius of the circle.

Front

How do you find the circumference of a circle?

Back

Circumference = πd or Circumference = 2πr, where d is the diameter and r is the radius.

Front

What does it mean to solve an inequality?

Back

To find the values of the variable that make the inequality true.

Front

What is the value of π (pi) approximately?

Back

π is approximately 3.14.

Front

How do you calculate the diameter of a circle from its circumference?

Back

Diameter = Circumference / π.

Front

What is the probability of drawing a specific color marble from a bag?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes).

Front

If a bag contains 20 marbles, how do you find the probability of drawing a green marble?

Back

Probability of green marble = (Number of green marbles) / (Total number of marbles).

Front

What is the relationship between the radius and diameter of a circle?

Back

Diameter = 2 × Radius.

Front

How do you simplify the expression 3(2x + 4)?

Back

Simplified expression = 6x + 12.

Front

What is the value of 48 divided by 8?

Back

48 ÷ 8 = 6.