Add/Subtract 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.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would with whole numbers, filling in with zeros if necessary.

Front

What is the result of 6.7 - 2.33?

Back

4.37

Front

What is the result of 7.2 - 4.3?

Back

2.9

Front

If Tracy bought a shirt for $39.12 and paid with a $50, how much change did she get back?

Back

$10.88

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would with whole numbers, filling in with zeros if necessary.

Front

What is the result of 91.55 + 7.6?

Back

99.15

Front

If Jerry bought 6.95 lbs of jelly beans and 1.75 lbs were cherry flavor, how many pounds were lime flavor?

Back

5.2 lbs

Front

What is the importance of aligning decimal points when adding or subtracting?

Back

Aligning decimal points ensures that each digit is in the correct place value, which is crucial for accurate calculations.

Front

What does it mean to round a decimal?

Back

Rounding a decimal means adjusting the number to a nearby value that is simpler or easier to work with, often to a certain number of decimal places.