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 grade.
The book starts with a short review of previously learned concepts (from 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've 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 naturally has lessons on long multiplication and long division with decimals.
Problems that show a little calculator picture are meant to be solved with the help of a calculator.
Otherwise, a calculator should not be allowed.
The last lessons deal with problem solving, and as such could be included in some other course of study.
They are included here since the problems involve the usage of decimal numbers, and also because the
material for this book is taken from the 3rd chapter of Math Mammoth Grade 5-A Complete Worktext,
which includes those problem solving lessons.
After this book, the student should understand how to perform all of the four operations with decimals.
However, please note that this book does not practice these operations with decimals that have more than
3 decimal digits. Students in 6th grader or higher should also practice decimal arithmetic with such longer
decimals. For fifth grade, I feel the coverage in this book is sufficient.
Better Yet - Package Deals!
Blue Series package - $60 (download) or $65 (CD)
Blue Series for grades 1-3 - $34 (download)
Golden/Green Series package - $50 (download) or $55 (CD)
Blue/Golden/Green Series Inclusive package - $95 (download) or $100 (CD)
LightBlue Series package - $81 (download) or $86 (CD)
*BONUS*: Buy any package listed above, and get the all new, 2008 Soft-Pak software with more features and options for FREE (includes 4 math, 1 language arts, 2 testing programs).
*BONUS* - SOFT-PAK MATH SOFTWARE
I bet you'd have to agree: this is a steal! You can get Soft-Pak math programs (list price $24.95) for just a small $3.50 s&h fee - just by ordering ANY of my books... but you need to order at Kagi store!
* Math Maker, for printable math activities with answer keys
* Math Master, for on screen practice of various math topics
* Math User, for answering the 900 multi-level word problems
* True/False Math Challenger for mastering facts 1-12
All the books on this website are available for *nearly instant download.
*Order processing at Kagi takes 1-2 hours; I do not know how quick it is at the other stores.
Kagi store - all of the ebooks and CDs. Kagi accepts all major credit cards, Paypal, check, cash, money order, purchase order, and a wire transfer. I maintain four different order pages at Kagi:
Lulu - printed copies for the Blue and Golden series books.
Winterpromise - printed copies and CDs for the LightBlue series.
Kagi - my main reseller
Kagi handles all my downloadable products and the CDs, and accepts all major credit cards, checks, Paypal (USD), money orders, and even cash. Please see Kagi FAQ for any questions about the payment methods.
After completing the order at Kagi, you will receive an email with download links for each book you bought, or for a zip file for the packages. You click on the links and download the books to your computer's hard drive. That's it!
In case of any problems with the download, you can always email me, and I can email the books to you directly. My contact info will be in the email you receive.
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.
Navigate by topic: (click outside the menu to close)
This is a little "virtual" email course. You will receive:
The package of 280 free worksheets and sample pages;
7 math teaching articles;
2 emails discussing the books;
Homeschool Math newsletter.
Note: You will FIRST get an email that asks you to confirm your email address. PLEASE check also your SPAM/JUNK folder for this confirmation email.
Newsletter
Subscribe to my monthly Homeschool Math Newsletter, and receive a GIFT of over 280 FREE math worksheets and sample pages from Math Mammoth books for grades 1-9.
Note: This is a double opt-in list. You will FIRST get an email that asks you to confirm your email address. PLEASE check also your SPAM/JUNK folder for this confirmation email.