Understanding Decimal Numbers
Decimal numbers are a way to express fractions or parts of a whole using a point (.) to separate the whole part from the fractional part. They are commonly used in everyday life, such as in measurements, finances, and science. In this blog post, we will focus on adding and subtracting decimal numbers, and provide a worksheet to practice these essential math skills.
Adding Decimal Numbers
Adding decimal numbers is similar to adding whole numbers, but you need to line up the decimal points correctly. Here are the steps to follow:
- Line up the decimal points of the two numbers.
- Add zeros to the right of the decimal point if necessary, to make sure both numbers have the same number of digits after the decimal point.
- Add the numbers as you would with whole numbers.
- Place the decimal point in the answer directly below the decimal points of the two numbers being added.
Example:
| 2.5 | + | 1.8 | = | |
|---|---|---|---|---|
| 2 | 5 | 1 | ||
| + | ||||
| 4 | 3 |
Answer: 4.3
Subtracting Decimal Numbers
Subtracting decimal numbers is also similar to subtracting whole numbers, but you need to line up the decimal points correctly. Here are the steps to follow:
- Line up the decimal points of the two numbers.
- Add zeros to the right of the decimal point if necessary, to make sure both numbers have the same number of digits after the decimal point.
- Subtract the numbers as you would with whole numbers.
- Place the decimal point in the answer directly below the decimal points of the two numbers being subtracted.
Example:
| 4.8 | - | 2.1 | = | |
|---|---|---|---|---|
| 4 | 8 | 2 | ||
| - | ||||
| 2 | 7 |
Answer: 2.7
Easy Decimal Math Worksheet
Now it’s time to practice adding and subtracting decimal numbers with our easy decimal math worksheet.
| Adding Decimals | |||
|---|---|---|---|
| 1.2 + 2.5 = | |||
| 3.8 + 1.9 = | |||
| 2.1 + 4.7 = | |||
| 5.6 + 3.2 = | |||
| 1.9 + 2.8 = |
| Subtracting Decimals | |||
|---|---|---|---|
| 4.9 - 2.1 = | |||
| 7.8 - 3.4 = | |||
| 9.1 - 4.6 = | |||
| 6.7 - 2.9 = | |||
| 8.5 - 3.8 = |
Answers:
- 1.2 + 2.5 = 3.7
- 3.8 + 1.9 = 5.7
- 2.1 + 4.7 = 6.8
- 5.6 + 3.2 = 8.8
- 1.9 + 2.8 = 4.7
- 4.9 - 2.1 = 2.8
- 7.8 - 3.4 = 4.4
- 9.1 - 4.6 = 4.5
- 6.7 - 2.9 = 3.8
- 8.5 - 3.8 = 4.7
Final Thoughts
Adding and subtracting decimal numbers is an essential math skill that is used in many real-life situations. By following the simple steps outlined in this blog post and practicing with our easy decimal math worksheet, you can become more confident and proficient in your ability to work with decimal numbers.
What is a decimal number?
+A decimal number is a way to express fractions or parts of a whole using a point (.) to separate the whole part from the fractional part.
How do I add decimal numbers?
+To add decimal numbers, line up the decimal points correctly, add zeros to the right of the decimal point if necessary, and add the numbers as you would with whole numbers.
How do I subtract decimal numbers?
+To subtract decimal numbers, line up the decimal points correctly, add zeros to the right of the decimal point if necessary, and subtract the numbers as you would with whole numbers.
