Adding, Subtracting, Multiplying Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, represented with a decimal point.

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 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 difference directly below the other decimal points.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.

Front

What is the importance of aligning decimal points when performing operations?

Back

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

Front

What is the result of 0.067 - 0.056?

Back

0.011

Front

What is the sum of 55.78 and 4.6?

Back

60.38

Front

What is 7.9 - 3.47?

Back

4.43

Front

What is 45.1 multiplied by 7?

Back

315.7

Front

What is the sum of 46.19 and 82.10?

Back

128.29