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.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

What is the sum of 0.5 + 0.3?

Back

0.8

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is 1.2 - 0.7?

Back

0.5

Front

What does it mean to round a decimal?

Back

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

Front

What is 2.75 rounded to the nearest whole number?

Back

3

Front

What is the value of 0.05 in relation to 0.1?

Back

0.05 is half of 0.1.

Front

What is the sum of 20.529 + 19.48?

Back

40.009

Front

What is the sum of 86.04 + 4.04?

Back

90.08