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# Mental Math to Add and Subtract Decimals

## Group decimal and whole number parts to make mental addition and subtraction easier.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Mental Math to Add and Subtract Decimals

Explore how to use mental math to find sums and differences of decimals.

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## Add and Subtract Decimals with Mental Math

Explore how to use mental math to find sums and differences of decimals.

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• Video

by CK-12 //basic

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• Video

## Subtracting Decimals (old)

by CK-12 //basic

Reviews subtracting decimals with examples.

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• Video

by CK-12 //basic

Learn how to add and subtract decimals.

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• Activity

## Learning for you!!!

This is an application for kids to type in the search engine nearly anything and get a learning site suitable for them at their grade. Kindergarten to grade 12 is the levels we support.

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A fun game to help practice adding and subtracting decimals.

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• Flashcards

## Mental Math to Add and Subtract Decimals

by Tiffany Kwok //basic