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Adding and Subtracting Decimals Calculator

QUICK LINKS


Adding and Subtracting Decimals Calculator

Adding and Subtracting Decimals

CALCULATOR
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Adding and Subtracting Decimals Calculator

Step 1. Line up the decimal points.

We have to line up the decimal points just like we have to line up the holes in beads to make a bracelet.
When we subtract a bigger number from a smaller number, our answer will be negative. To subtract, we swap the top and bottom, and add a negative sign where the answer goes:

Step 2. Add trailing zeros.

This step is optional, but we can add 's to the end of our shorter decimal to make adding & subtracting decimals easier.

Step 3. Add/subtract.

The decimal point in the final answer should line up with the other decimal points.
So, the answer is .
We have some questions for you! Help us out through this
INTRO
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Think of adding decimals like adding beads to a necklace, and subtracting decimals like removing beads from a necklace.
We can have all sorts of wacky beads or charms, but no matter what, their holes have to line up in order to add and remove them!
Our decimal points are like the bead holes. We might have decimals of different lengths, but as long as we make sure to line up our decimal points, we’ll be able to add and subtract them up with no problem!
Try dragging the bottom decimal to line up the decimal points!
Check out our
Calculator
or explore our
Lesson
and
Practice
sections to learn more about adding and subtracting decimals and test your understanding.

You can also use the Quick Links menu on the left to jump to a section of your choice.

You can also use the Quick Links dropdown above to jump to a section of your choice.

KEY STEPS
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How to Add and Subtract Decimals

Step 1. Line up the decimal points.

We have to line up the decimal points just like we have to line up the holes in beads to make a bracelet.

Step 2. Add trailing zeros.

This step is optional, but we can add 's to the end of our shorter decimal to make adding and subtracting decimals easier.

Step 3. Add/subtract.

The decimal point in the final answer should line up with the other decimal points.
LESSON
— Adding and Subtracting Decimals
PRACTICE
— Adding and Subtracting Decimals
CONCLUSION
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