7th Grade Midterm

Front

What is the formula to calculate simple interest?

Back

Simple Interest = Principal × Rate × Time

Front

If you invest $300 at an interest rate of 4%, how much interest do you earn in one year?

Back

$12

Front

What does it mean to solve for a variable in an equation?

Back

To find the value of the variable that makes the equation true.

Front

Solve for a: 3a + 6 = 0

Back

a = -2

Front

What is the solution to the equation 13 = 11 - 4x?

Back

x = -1/2

Front

How do you add decimal numbers?

Back

Align the decimal points and add as you would whole numbers.

Front

What is the sum of 6.78 and 11.9?

Back

18.68

Front

What is the first step to solve the equation -5 = 3m - 14?

Back

Add 14 to both sides to isolate the term with m.

Front

What is the solution to the equation -5 = 3m - 14?

Back

m = 3

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value.