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Decimals

3rd–5th

Decimals are just fractions in disguise — kids who understand place value transition to decimals naturally.

4 articles

Skills your child will master

  • Reading and writing decimals to thousandths
  • Connecting decimals to fractions
  • Comparing and rounding decimals
  • Adding and subtracting decimals
  • Multiplying and dividing decimals

Ties every decimal lesson back to place value and fraction equivalents so kids never see decimals as a separate, disconnected topic.

Decimal Place Value

3rd–5th1

How to Teach Place Value with Decimals

Decimal place value extends the same system your child already knows — but to the right of the decimal point. Here is how to teach it so tenths and hundredths feel as natural as tens and hundreds.

3 min read3rd–5th

Introduction to Decimals

3rd–4th2

What Is a Decimal?

A clear explanation of decimals — what they are, how they relate to fractions, and why the decimal point matters.

2 min read3rd–4th

How to Teach Decimals (Connecting Fractions to Place Value)

Decimals are not a new number system — they are fractions written in place value notation. Here is how to teach decimals so your child sees the connection and does not treat them as a separate topic.

4 min read3rd–4th

Decimal Operations

4th–5th1

How to Teach Decimal Operations (Add, Subtract, Multiply, Divide)

Decimal operations follow the same rules as whole number operations — with one added challenge: the decimal point. Here is how to teach all four operations with decimals.

3 min read4th–5th

Your child's path through decimals — automated

Lumastery builds a personalized path through these skills. They practice daily. You get weekly reports. No lesson planning required.

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