Add & Subtract 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

What does the place value 'thousandths' represent?

Back

The 'thousandths' place is the third digit to the right of the decimal point, representing one part of a thousand.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add each column, 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, borrowing if necessary.

Front

What is the value of the digit 2 in the number 6.3529?

Back

The digit 2 is in the thousandths place.

Front

Calculate: 15.07 - 12.2

Back

2.87

Front

Calculate: 21 + 4.09

Back

25.09

Front

Calculate: 134.543 + 345.879

Back

480.422

Front

Calculate: 6.7 - 2.33

Back

4.37

Front

What is the importance of aligning decimal points when adding or subtracting?

Back

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