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 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 answer directly below the other decimal points.

Front

What is the process for subtracting decimals?

Back

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

Front

What is the value of 0.5 in fraction form?

Back

0.5 is equivalent to 1/2.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number). For example, 1/4 = 0.25.

Front

What is the sum of 2.5 and 3.7?

Back

2.5 + 3.7 = 6.2.

Front

What is 5.6 - 2.3?

Back

5.6 - 2.3 = 3.3.

Front

If you have 1.25 kg of apples and you buy another 0.75 kg, how much do you have in total?

Back

1.25 kg + 0.75 kg = 2.00 kg.

Front

What is the result of 10.0 - 4.5?

Back

10.0 - 4.5 = 5.5.

Front

How do you round 3.67 to the nearest whole number?

Back

3.67 rounded to the nearest whole number is 4.