Advanced Search >

Math Mammoth Add & Subtract 4
Quick Preview

Math Mammoth Add & Subtract 4

Suggested Price $3.10

Math Mammoth Add & Subtract 4 covers the following addition and subtraction related topics in the fourth grade level:

  • mental addition and subtraction strategies;
  • adding and subtracting in columns;
  • some numerical patterns;
  • bar models in problem solving;
  • order of operations;
  • line graphs and bar graphs;
  • rounding and estimating;
  • money problems and discounts.

The PDF version of this book is enabled for annotation. This means that if you prefer, your student can fill it in on the computer, using the typewriter and drawing tools in Adobe Reader version 9 or greater.

The lessons in this book are taken from the first chapter of Math Mammoth Grade 4 Complete Curriculum. Some of the lessons are useful even for 5th grade students, especially if they have not had much exposure to word problems, order of operations, and applications of addition and subtraction.

At first, we review the "technical aspects" of adding and subtracting: mental math techniques and adding and subtracting in columns. We also study some patterns. The lesson on Pascal's triangle is intended to be fun and fascinating—after all, Pascal's triangle is full of patterns!

In the next lesson, we study the connection between addition and subtraction and bar models. Bar models help students write addition and subtraction sentences with unknowns, and solve them. This is teaching the students algebraic thinking: how to write and solve simple equations.

The lesson on the order of operations contains some review, but we also study connecting the topic with real-life situations (such as shopping). Here, the student writes the mathematical expression (number sentence) for word problems, which again, practices algebraic thinking.

Going towards applications of math, the book then contains straightforward lessons on bar graphs, line graphs, rounding, estimating, and money problems.

 Customers Who Bought this Title also Purchased
Reviews (5)
Discussions (0)
August 14th, 2017
Thank you very much for your product. We will enjoy. [...]
January 6th, 2016
We use this Add & Subtract 4 as a warm-up. Every section is 2 to 5 pages. Kids stay focused and now enjoy doing their math.! Maria's way of explaining, showing different ways of finding the answer and some (but not too overwhelming) repetit [...]
March 7th, 2014
My son loves doing math problems, and these are great. I can actively see him learning new methods for addition and subtraction, and seeing word problems through new eyes. This is definitely a must buy! [...]
May 14th, 2010
This was so much more than just adding and subtracting. It covered Roman numerals and practical skills like reading those mileage charts in the corner of maps. It's designed for the students to read and teach themselves. I had to go through it with my [...]
May 13th, 2009
I like how this book not only teaches the subject but gives helpful internet sites to explore also. I like to allow my children tiime to on friday's to use the internet to explore a subject we are working on so I love this. [...]
Browse Categories
 Follow Your Favorites!
NotificationsSign in to get custom notifications of new products!
Product Information
Gold seller
Appropriate Age(s)
Appropriate Age(s)
File Size:
3.23 MB
Original electronic
Scanned image
These products were created by scanning an original printed edition. Most older books are in scanned image format because original digital layout files never existed or were no longer available from the publisher.

For PDF download editions, each page has been run through Optical Character Recognition (OCR) software to attempt to decipher the printed text. The result of this OCR process is placed invisibly behind the picture of each scanned page, to allow for text searching. However, any text in a given book set on a graphical background or in handwritten fonts would most likely not be picked up by the OCR software, and is therefore not searchable. Also, a few larger books may be resampled to fit into the system, and may not have this searchable text background.

For printed books, we have performed high-resolution scans of an original hardcopy of the book. We essentially digitally re-master the book. Unfortunately, the resulting quality of these books is not as high. It's the problem of making a copy of a copy. The text is fine for reading, but illustration work starts to run dark, pixellating and/or losing shades of grey. Moiré patterns may develop in photos. We mark clearly which print titles come from scanned image books so that you can make an informed purchase decision about the quality of what you will receive.
Original electronic format
These ebooks were created from the original electronic layout files, and therefore are fully text searchable. Also, their file size tends to be smaller than scanned image books. Most newer books are in the original electronic format. Both download and print editions of such books should be high quality.
File Last Updated:
March 01, 2018
This title was added to our catalog on July 25, 2008.