Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

Front

How do you compare two decimal numbers?

Back

To compare two decimal numbers, align them by the decimal point and compare digit by digit from left to right.

Front

What does it mean to add decimals?

Back

Adding decimals involves lining up the decimal points and adding each column of numbers, just like whole numbers.

Front

What does it mean to subtract decimals?

Back

Subtracting decimals involves lining up the decimal points and subtracting each column of numbers, just like whole numbers.

Front

What is the value of 0.5 + 0.3?

Back

0.5 + 0.3 = 0.8.

Front

What is the value of 1.2 - 0.7?

Back

1.2 - 0.7 = 0.5.

Front

How do you round a decimal to the nearest whole number?

Back

To round a decimal to the nearest whole number, look at the digit to the right of the decimal point. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the value of 0.604 < 0.610?

Back

True, 0.604 is less than 0.610.

Front

What is the value of 0.47 > 0.407?

Back

True, 0.47 is greater than 0.407.

Front

If Nash earns $12 per week, how much does he earn in 3 weeks?

Back

Nash earns $12 x 3 = $36 in 3 weeks.