Decimal Operations

Front

What is the difference between two decimal numbers?

Back

The difference is the result of subtracting one decimal number from another.

Front

How do you calculate the area of a rectangle?

Back

Area = length x width.

Front

What is the cost of multiple items if each item has a different price?

Back

Add the cost of each item together to find the total cost.

Front

How do you find the monthly deposit if you know the total amount deposited over several months?

Back

Monthly deposit = Total amount deposited / Number of months.

Front

What is the formula to calculate the total cost of paint needed for a project?

Back

Total cost = Price per gallon x Number of gallons needed.

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten.

Front

How do you round a decimal to the nearest cent?

Back

Look at the third decimal place; if it's 5 or more, round up the second decimal place by one.

Front

What does it mean to estimate a difference between two numbers?

Back

Estimating a difference means finding a rough value that is close to the actual difference.

Front

What is the significance of place value in decimal numbers?

Back

Place value determines the value of a digit based on its position in a number.

Front

How do you convert a decimal to a fraction?

Back

Write the decimal as a fraction with a denominator of 1, then multiply numerator and denominator by 10 for each digit after the decimal.