Grade 7: Math Review

Front

What is the result of -21 + 14? Is it positive or negative?

Back

Negative because 21 is larger.

Front

What does the distributive property state?

Back

a(b + c) = ab + ac

Front

What is the expression for saving money to buy an item?

Back

Total cost - amount saved = amount needed to save.

Front

If Gracie has 24 cookies for 3 classes, how many cookies does she need for 4 classes?

Back

32 cookies.

Front

How do you calculate the cost per slice of pizza?

Back

Total cost / number of slices.

Front

What is the distributive property of -4(-4d + 5)?

Back

16d - 20.

Front

If you save $20 each week, how do you find out how many weeks you need to save for a total of $340?

Back

(Total cost - amount saved) / amount saved per week.

Front

What is the formula for finding the average cost per item?

Back

Total cost / number of items.

Front

How do you determine if a number is positive or negative?

Back

A positive number is greater than zero; a negative number is less than zero.

Front

What is the meaning of the term 'distributive property' in math?

Back

It allows you to multiply a sum by multiplying each addend separately and then adding the products.