Adding, Subtracting, Multiplying, Dividing Decimals Flashcard

Front

What is the process of adding decimals?

Back

To add decimals, align the numbers by the decimal point and add each column starting from the right, carrying over if necessary.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract each column starting from the right, borrowing if necessary.

Front

What is the rule for multiplying 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

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number, then move the decimal point in the dividend the same number of places and divide as usual.

Front

What is the sum of 16.7 and 13.8?

Back

The sum of 16.7 and 13.8 is 30.5.

Front

What is the sum of 15.6 and 4.5?

Back

The sum of 15.6 and 4.5 is 20.1.

Front

What is the difference when subtracting 21.7 from 18.8?

Back

The difference is 2.9.

Front

What is 50.28 divided by 4?

Back

50.28 divided by 4 equals 12.57.

Front

What is 10.24 divided by 2?

Back

10.24 divided by 2 equals 5.12.

Front

What is the importance of aligning decimal points in addition and subtraction?

Back

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