MATH STAAR REVIEW

Front

What is the formula to calculate percentage increase?

Back

Percentage Increase = ((New Value - Old Value) / Old Value) * 100

Front

What is the circumference of a circle?

Back

Circumference = π * Diameter or Circumference = 2 * π * Radius

Front

How do you calculate the circumference of a circle with a radius of 2.5 feet?

Back

Circumference = 2 * π * 2.5 ≈ 15.7 feet

Front

What is the formula for the total cost when buying multiple items?

Back

Total Cost = (Price of New Item * Quantity of New Items) + (Price of Used Item * Quantity of Used Items)

Front

If a store sells new video games for $55 and used video games for $12, what is the equation for total cost if buying 3 new and x used games?

Back

y = 12x + 165

Front

What is the diameter of a circle?

Back

The diameter is the distance across the circle through its center, equal to twice the radius.

Front

How do you find the radius if you know the diameter?

Back

Radius = Diameter / 2

Front

What is the relationship between diameter and circumference?

Back

Circumference = π * Diameter

Front

What is the formula for finding the area of a circle?

Back

Area = π * Radius²

Front

What is the value of π (pi) approximately?

Back

π ≈ 3.14