Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a number that has a whole part and a fractional part, separated by a decimal point. 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 sum directly below the other decimal points.

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 the value of 0.5 in cents?

Back

0.5 is equal to 50 cents.

Front

If Lisa has $100 and spends $27.99, how do you find out how much she has left?

Back

Subtract $27.99 from $100. The calculation is $100 - $27.99 = $72.01.

Front

What is the sum of 22 and 4.57?

Back

The sum is 26.57.

Front

What is the sum of 27.63 and 15.04?

Back

The sum is 42.67.

Front

If Tom received 8.30 kg of candy and his brother received 1.8 kg, how do you find the total?

Back

Add 8.30 kg and 1.8 kg. The total is 10.1 kg.

Front

What is the result of adding 0.75 and 0.25?

Back

The result is 1.00.

Front

How do you convert 1.5 to a fraction?

Back

1.5 can be converted to the fraction 3/2.