Math Mammoth Decimals 2
125 pages
(includes answers)
Sample pages (PDF)
Contents and Introduction
Comparing Decimals
Multiplying Decimals
Divide Decimals by Whole Numbers
Divide Decimals by Decimals 1
Prices & ordering
U.S. version
PDF download USD $8.00
International version
(all metric; A4 paper size)
PDF download USD $8.00
You will be purchasing the downloads from my authorized reseller Comecero.
Printed copy $12.45
Este libro en español
Math Mammoth Decimals 2 is a book about decimal place value and the four operations with decimals. It is most suitable for 5th and 6th grades.
The book starts with a short review of previously learned concepts (studied in Math Mammoth Decimals 1): place value with tenths and hundredths, and adding and subtracting decimals that have tenths and hundredths.
The rest of the book is spent learning the four operations of decimals with numbers that have up to three decimal digits, and especially concentrating on decimal multiplication and division. We start by learning place value, comparing, and rounding decimals (tenths, hundredths, and thousandths). After that follow addition and subtraction, and then various multiplication and division topics.
I have strived to emphasize mental calculations based on conceptual understanding of decimals, and for that end the text also often includes little tips or "tricks" that help with mental calculations. Along with all that, the book has lessons on long multiplication and long division with decimals. Problems that show a small picture of a calculator are meant to be solved with the help of a calculator. Otherwise, a calculator should not be allowed in solving the problems.
The last lessons deal with converting between customary units of measurement and problem solving. They are included here since the problems involve the usage of decimal numbers, and also because the material for this book comes from Math Mammoth Grade 5 Curriculum, which includes those problem solving lessons.
After studying Math Mammoth Decimals 2, the student should understand how to perform all four operations with decimals. However, please note that this book does not practice these operations with decimals that have more than three decimal digits. Students in sixth grade or higher should also solve problems with much longer decimals. For fifth grade, I feel this book covers the topics sufficiently.
We also offer videos that match the lessons in this book
The PDF version of this book can be filled in on a computer, phone, or tablet, using the annotation tools found in many PDF apps. See more.
At this link, you can make additional supporting worksheets for 5th grade decimal topics. Scroll down to the "Decimals" section.
- Math Mammoth Decimals 1—a solid introduction to decimal numbers with emphasis on mental math (grades 4-5).
- Math Mammoth Fractions & Decimals 3—a worktext for all fraction and decimal topics with large denominators and more decimal digits (grades 6-7).
- Make It Real Learning: Fractions, Percents, and Decimals I—an activity workbook with real-world data, focusing on situations that use fractions, percents, and unit conversion (grades 4-7).
- Make It Real Learning: Fractions, Percents, and Decimals II—an activity workbook with real-world data, focusing on situations that use decimals, ratios, histograms, and percents (grades 5-9).
Better Yet - Bundle Deals!
Blue Series - $165 (download)Blue Series for grades 1-3 - $49 (download)
Blue Series for grades 4-5 - $47 (download)
Blue Series for grades 6-8 - $69 (download)
Light Blue Series, grades 1-8 - $225 (download)
Light Blue Series, grades 1-4 - $112.50 (download)
Light Blue Series, grades 5-8 - $112.50 (download)
All Inclusive Bundle - $275 (download)
"Everything" Bundle - $330 (download)
Learn more about the bundles!
*BONUS*: Buy any bundle listed above, and get the fully upgraded Soft-Pak software for FREE (includes 4 math and 2 language arts programs, complete with on screen and printable options).
How and where to order
You can buy Math Mammoth books at:
- Here at MathMammoth.com website — simply use the "Add to cart" buttons you see on the product pages.
- Rainbow Resource carries printed copies for the Light Blue series books, plus several CDs (Light Blue and Blue series).
- Homeschool Buyers Club offers download versions of the Light Blue series, plus the Blue series bundle.
- Homeschool Planet sells the digital versions of the main curriculum and lesson plans to go with them.
- K5 Learning offers download versions of the Blue series.
- TPT sells the Light Blue Series downloads, plus topical units.
- Lulu sells printed copies for most of the Math Mammoth materials (various series).
By purchasing any of the books, permission IS granted for the teacher (or parent) to reproduce this material to be used with his/her students in a teaching situation; not for commercial resale. However, you are not permitted to share the material with another teacher.
In other words, you are permitted to make copies for the students/children you are teaching, but not for other teachers' usage.
Math Mammoth books are PDF files. I recommend you use Adobe Reader to view them, including if you use a Mac. You can try other PDF viewers, but they may at times either omit or mess up some of the images.
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