7th grade Math Review

Front

What is the formula for calculating the circumference of a circle?

Back

The circumference (C) of a circle is calculated using the formula C = πd, where d is the diameter.

Front

How do you find the diameter of a circle if you know the circumference?

Back

To find the diameter, use the formula d = C/π, where C is the circumference.

Front

What is the value of π (pi) commonly approximated as?

Back

π is commonly approximated as 3.14.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something.

Front

How do you calculate a unit rate from a graph?

Back

To calculate a unit rate from a graph, find the slope of the line, which represents the change in the y-value per unit change in the x-value.

Front

What is the process for solving a simple addition problem?

Back

To solve a simple addition problem, combine the values together to find their total.

Front

What is the result of the expression -4 + 15?

Back

The result of the expression -4 + 15 is 11.

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting variables with numbers and performing the operations.

Front

What is the square root of a number?

Back

The square root of a number is a value that, when multiplied by itself, gives the original number.