7th Grade Math ACA Test Review - Integer & Rational Numbers

Front

What is the formula to calculate the total cost when multiple items are purchased?

Back

Total Cost = Sum of all individual costs.

Front

How do you convert a recipe that makes a certain number of servings to a different number of servings?

Back

Multiply the ingredient amounts by the ratio of the desired servings to the original servings.

Front

What is the result of multiplying a positive number by a negative number?

Back

The result is a negative number.

Front

How do you simplify the expression -9 - (-27)?

Back

Subtracting a negative is the same as adding a positive, so -9 + 27 = 18.

Front

What is the process for splitting costs among multiple people?

Back

Total cost divided by the number of people.

Front

What is the significance of understanding integer and rational numbers in real-life applications?

Back

They help in making calculations related to finances, measurements, and other practical situations.

Front

How do you calculate the total bill from multiple charges?

Back

Add all individual charges together.

Front

What is the value of 6.7 multiplied by -4.25?

Back

-28.475.

Front

What is the importance of understanding negative numbers in math?

Back

Negative numbers are essential for representing debts, temperatures below zero, and other real-world scenarios.

Front

How do you find the average cost per person when sharing expenses?

Back

Total expenses divided by the number of people sharing the expenses.