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, 2.5 is a decimal.

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, placing the decimal point in the answer directly below the other decimal points.

Front

What is the sum of 2.3 and 0.82?

Back

3.12

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, placing the decimal point in the answer directly below the other decimal points.

Front

What is 1.2 - 0.6?

Back

0.6

Front

What is the total of 2.063 km and 2.07 km?

Back

4.133 km

Front

How do you find the difference between two decimals?

Back

To find the difference, subtract the smaller decimal from the larger decimal.

Front

What is the difference between 2.07 km and 2.063 km?

Back

0.007 km

Front

What is the sum of 58.92 and 3.74?

Back

62.66

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.