You should read and understand the Place Value and Fractions books first.

Decimal Fractions are an extension of those two topics and if you do not really understand them you will not fully understand Decimal Fractions.

If you do know and understand Place Value and FractionsDecimal Fractions are EASY.

You should also learn the Integers book before you learn this one, because in this book I assume you understand integers, positive and negative numbers, and numbers in general.

If you studied those three books, Decimals would take you 5 - 7 hours, and by the end of it you will know everything you need to know about Decimal Fractions.

Here is a short excerpt from the book:

Decimal Fractions are Fractions that are written with the Decimal Place Value system.

This is why Decimal Fractions are often called “Decimals

In fact, all the numbers we use are “Decimals”, which means they are numbers in the base 10 system.

Because a Decimal Fraction is written with the Decimal Place Value systemit is a fraction with a denominator that is a multiple of 10 (10, 100, 1000, etc.).

Similarly to fractions, you can have mixed numbers (a whole number and a fraction together) or negative Decimals.




Daniella F.
I have seven girls and my oldest is still struggling in math. I am determined not to go thru this painful experience with the others! Thank u. She … read more
Jeannete Wing
I just got both books and they are delightful! Reading fractions makes me hungry! Your students are lucky.

Jeanette Wing, Head of Microsoft … read more
It's the first time I don't have to tell my kids to do their math. They even asked me if they can do it over other things.

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