Math Checkpoint #4

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

What is the definition of change in a transaction?

Back

Change is the amount of money returned to a buyer after a purchase, calculated as the difference between the amount given and the cost of the item.

Front

Calculate the product of 29 and 77.

Back

2233.

Front

What is the process for adding decimal numbers?

Back

Align the decimal points and add as you would with whole numbers, then place the decimal point in the sum.

Front

If a pack of markers costs $12 and a pack of notebooks costs $15, what is the total cost of 3 packs of markers and 3 packs of notebooks?

Back

Total cost = (3 × $12) + (3 × $15) = $36 + $45 = $81.

Front

What is the definition of a sum in mathematics?

Back

The sum is the result of adding two or more numbers together.

Front

How do you calculate the change from a $10 bill after a purchase of $2.74?

Back

Change = $10 - $2.74 = $7.26.

Front

What is the definition of multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number.

Front

What is the sum of 3.25 and 2.6?

Back

5.85.

Front

What is the formula for calculating the total cost of multiple items?

Back

Total cost = (cost of item 1 × quantity) + (cost of item 2 × quantity) + ...