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Math Mammoth Grade 4 complete curriculum

Math Mammoth Grade 4 Complete Curriculum is a complete math program for 4th grade. It consists of two student worktexts (A and B), a separate answer key for each, tests, cumulative reviews, and in the download version, an additional worksheet maker (Internet access required) to make extra practice worksheets when needed.

cover for Math Mammoth Grade 4-A Complete Worktext
198 pages
180 lesson pages

cover for Math Mammoth Grade 4-B Complete Worktext
192 pages
173 lesson pages

4-A contents and samples
4-B contents and samples
User Guide, grade 4
Grade 4 & Common Core

Prices & ordering

You can purchase Math Mammoth Grade 4 as a download, on a CD, or as already printed books.


Grade 4 complete:
$37.50 (download)
(part A and B worktexts, answer keys, tests, cumulative reviews, a worksheet maker)

Add to cart

Part 4-A only:
$18.75 (download)
(part A worktext, its answer key, tests, cumulative reviews, worksheet maker, Soft-Pak)
Add to cart

Part 4-B only:
$18.75 (download)
(part B worktext, its answer key, tests, cumulative reviews, worksheet maker, Soft-Pak)
Add to cart

You will be purchasing the downloads from my authorized reseller Comecero, LLC.


Full set grade 2: $42.50
(part A and B worktexts, answer keys, tests, cumulative reviews, a worksheet maker, and Soft-Pak)

Order CD at Rainbow Resource

Lesson plan

You can purchase a $9.95 lesson plan for Math Mammoth Grade 4 to use it in Homeschool Planet online planner. Learn more.

Add to cart

Printed copies

You can purchase printed copies at Lulu or Rainbow Resource.

Rainbow Resource Center sells perfect-bound texts either in full color or b&w:

Math Mammoth grade 4 (b&w)
Math Mammoth grade 4 (color)

Lulu sells spiral bound texts that are black and white inside:

4-A worktext $14.95
4-B worktext $14.95
Answer Keys $10.95
Tests & Cumulative Reviews $8.95

Supportive materials

The "supportive materials" are intended to be used with printed student books. Includes the digital (download) versions of the answer keys, tests, cumulative reviews, worksheet maker, and software Soft-Pak. It does NOT include the student books.

Supportive materials $8.95

In the fourth grade, students focus on multi-digit multiplication and division, learning to use bigger numbers, solving multi-step word problems that involve several operations, and they get started in studying fractions and decimals. This is of course accompanied by studies in geometry and measuring.

The year starts out with a review of addition and subtraction, patterns, and graphs. We illustrate word problems with bar diagrams and study finding missing addends, which teaches algebraic thinking. Children also learn addition and subtraction terminology, the order of operations, and statistical graphs.

Next come large numbers—up to millions, and the place value concept. At first the student reviews thousands and some mental math with them. Next are presented numbers up to one million, calculations with them, the concept of place value and comparing. In the end of the chapter we find out more about millions and an introduction to multiples of 10, 100, and 1000.

The third chapter is all about multiplication. After briefly reviewing the concept and the times tables, the focus is on learning multi-digit multiplication (multiplication algorithm). The children also learn why it works when they multiply in parts. We also study the order of operations again, touch on proportional reasoning, and do more money and change related word problems.

The last chapter in part A is about time, temperature, length, weight, and volume. Students will learn to solve more complex problems using various measuring units and to convert between measuring units.

In part B, we first study division. The focus is on learning long division and using division in word problems. In geometry, we first review area and perimeter, and then concentrate on the topic of angles. Students measure and draw angles, solve simple angle problems, and classify triangles according to their angles. They also study parallel and perpendicular lines.

Fractions and decimals are presented last in the school year. These two chapters practice only some of the basic operations with fractions and decimals. The focus is still on conceptual understanding and on building a good foundation towards 5th grade math, where fractions and decimals will be in focus.

When you use these books as your only or main mathematics curriculum, they can be like a "framework," but you do have some liberty in organizing the study schedule. Chapters 1, 2, and 3 should be studied in this order, but you can be flexible with chapters 4 (Time and Measuring) and 6 (Geometry) and schedule them somewhat earlier or later if you so wish. Chapter 3 (Multiplication) needs to be studied before long division in Chapter 5. Many topics from chapters 7 and 8 (Fractions and Decimals) can also be studied earlier in the school year; however finding parts with division should naturally be studied only after mastering division.

Please also see the table of contents for 4-A and 4-B (in the sample files), which will let you see the topics covered in more detail.

Some main features of Math Mammoth complete curriculum (Light Blue series) are:

  • focuses on understanding of mathematical concepts
  • uses clear explanations, lots of visual exercises and pattern exercises
  • mastery oriented: concentrates fairly long on a topic, with fairly few topics per grade
  • emphasizes mental math and developing number sense
  • very little teacher preparation needed

Additional features for the digital version (download/CD)

The digital version includes a worksheet maker (Internet access required) that lets you make extra practice worksheets for many of the topics in the curriculum.

The PDF files are enabled for annotation. This means that if you prefer, your student can fill them in on the computer, using the typewriter and drawing tools in Acrobat Reader version 9 or greater, or on a tablet device using any PDF app with annotation capabilities. (Learn more.)

BONUS! If you purchase the download or CD version, you will also get Soft-Pak programs completely FREE. The 6 programs in Soft-Pak (4 math, 1 language arts, 1 list maker) offer both on-screen and printable activities in a low-graphic, high content format. Read more and see screenshots.


Here is a list of manipulatives that are needed or recommended for grade 4. Measuring tapes are only used in the measuring chapter.

  1. A protractor (for 4-B).
  2. A ruler that measures in inches (for 4-A and 4-B).
  3. A ruler that measures in centimeters (for 4-A and 4-B).
  4. A measuring tape that measures in feet (for 4-A).
  5. A measuring tape that measures in meters (for 4-A).
  6. A kitchen scale that measures in ounces (for 4-A; used only in one problem).
  7. Measuring cups that measure 1 cup, 1/2 cup, and 1/4 cup (for 4-A; used only in one problem).
  8. Fraction manipulatives. The curriculum contains printables to make your own fraction manipulatives. The text uses visual pie models extensively, and students even learn to draw them themselves for the exercises, therefore making or buying the manipulatives is entirely optional (optional; for 4-B).

Reviews & testimonials

I just wanted to tell you that I just moved my son from Horizons math to your Math Mammoth. Mostly because I wanted a mastery-type curriculum and yours was highly rated and also suggested by Math Without Borders. He is doing so well with it and it's hard to believe that just after a few weeks his mental math has improved incredibly. He loves the workbook and the games are excellent and has been a great motivator for him. Engineering is in his future so I wanted to hit math hard this year to prepare him for Math without Borders.

Thank you so much for all of your emails and care taken with your curriculum. He will be getting a Mammoth stuffed animal for Christmas!!

A happy homeschooling mom (Allisha)

September 2017

"Math Mammoth utilizes color in their books. This is a HUGE bonus in my opinion. It can be very monotonous to stare at page after page of black and white numbers, especially for little ones. Things like the fractions you see here are so much more interesting, and easier to explain when you have color designations."

Read the full review by Heidi at Starts at Eight blog

September 2016

New to home schooling, I felt overwhelmed trying to pick out a suitable curriculum to suit a 1st and 4th grader (in particular), having come through regular school up to 3rd grade. Both kids are enjoying Math Mammoth so far. The hints and tips for mental math throughout are great. The program provides flexibility if a student is struggling on something because I can hop back and print out some 3rd grade reminders of key concepts. I love that I can generate extra worksheets of different problems online anytime - brilliant. We haven't got far enough yet to use the chapter reviews but glad that they are there for us when we're ready. The pricing through homebuyers is amazing to cover both students through 8th grade if we so choose. I chose to do the download option and print as we go. I would recommend this product (and a good printer!)."

- Claire L, Orlando, Co-op Member
September 2016

I've been using Mammoth for 3 years now. I teach fourth grade and my students love it! They can work as ability allows and now I actually have to buy the 6th grade program for some of my higher students who have breezed through 4th and 5th grade math!

May 2015

We love Math Mammoth and especially the fantastic deal we got through the Co-op to download everything!

I love that we have topics as well as grades, so if my DD is struggling with something we can go back and cover it by topic to review, or use the reviews from previous grades. I love how the material is presented and it really makes sense. The mastery system is great because I feel my daughter can work to 'get it', rather than the old system we used which was spiral and often I found she didn't understand a lot of what we'd covered.

Finally, I like that it is not overly difficult for grade level, but about right. It gives my daughter confidence and there is still challenge in the puzzle corners, which we do together and she really enjoys. Other curriculum we have used has had a lot of extra stuff, which often my DD has not been ready for, so we've ended up going down a grade level, but then some of it was too easy. She's in fourth grade and sometimes she works independently, and other times I need to work through the explanations with her.

My daughter in first grade also uses some of the lessons, but at that age I tend to do more real life maths, aka Ruth Beechick. What we have used I really like, as it's all concrete - with pictures etc for the numbers.

We will continue to use this, definitely, it's the first programme I've been totally happy with.

My younger daughter loves it. My elder, really, really doesn't lke math, but she does really quite like Math Mammoth, so that's a pretty impressive accolade!

I have recommended Math Mammoth to all my home ed friends, because our family think it's great! I also recommended the Co-op deal.

- Mic T
March 2015

I just wanted to write to thank you for your curriculum. I have been using your fourth grade materials for a student I am homeschooling and have been very impressed with how well it works! When I first arrived, he told me he wasn't good at math and didn't like it. I noticed very quickly that he hadn't ever learned division so I immediately downloaded the division mini-unit and we worked through that. He still complains that he doesn't like math because it's too hard but I have enjoyed hearing him say to himself, as he's working, "This is so easy!" We are getting into the standard multiplication section so I am interested in seeing how the pieces come together to help him understand not just the steps but why they work the way they do.

I am in Cambodia so I have been very thankful for the ease in downloading the materials and printing them out. It saves on weight, which is always a plus. I'm looking into curriculum for next year and I expect to continue using MathMammoth for our math. Thank you for your work with it!

Added: We have now passed what I thought would be a "hurdle" going into standard multiplication and that day has come and gone completely painlessly!

December 2013

Very thankful for it. My son is doing great with these materials. He was able to complete all of grade 4 in 5 mos with excellent comprehension and retention. I really don't know what we would have done without it. I recommend your course to many parents in my area. Lots of kids at the Waldorf school are struggling with math and looking at the materials they are using there is no question about why that is so. They end up with rote memorization of their tables and then do not have quick recall because they have to go through the whole silly song they learn instead of having great recall of the visual as well as the sense of the problem. The way you have your workbooks designed to encourage mental math is excellent. Jonathan prides himself on being able to work the word problems in his head as much as possible - something sorely missing in math education today.

Thanks again.

January 2012

Hi Maria,
please let me take this opportunity to thank you for your fabulous Math Mammoth program.

My daughter is using it since 4th grade (now working on 5th grade) and we are looking ahead for next year's 6th grade. Math Mammoth has in my opinion hard-to-beat advantages over other math curricula:

* it is virtually self teaching. My daughter prefers doing her math on her own and rarely needs my help. She is getting it! Your explanations are wonderfully clear, Maria.

* it is very rigious and the chapter length is just right with 2-3 pages.

* your warmheartedness and dedication to provide a good curriculum shine through.

* it is very affordable.

I also wanted to mention, that I really appreciate your recommendations/comments on how to continue after finishing 6th grade. I value your opinion and input on this. Thank you for taking the time to review the curricula.
May I mention that my older daughter does Life of Fred parallel with Math Mammoth, an approach that proved extremely worthwhile for us. Concepts are constantly mutually introduced and/or reinforced, helping her to get a really good foundation in math. It is also not as time consuming as it might sound, since we take Fred on a more relaxed and slower basis. She is now working with Math Mammoth 5th grade (almost finished) and Life of Fred Pre-Algebra with Biology (about 1/2 way through).

In general, I would like to say, that Math Mammoth is easier to work with independently for grades 3 and up. It was in some way very difficult for my 2nd grader, since he would 'need' more pictures and definitely more one-one-one teaching. I felt that Math Mammoth was sometimes quite abstract and harder to understand for him. For this reason, I will give it another year before using Math Mammoth with him. On the other hand, my youngest son might benefit from Math Mammoth right away since math seems to be 'his thing' and he is very quick in getting and using even abstracter concepts.

To sum it up, I cannot thank you enough for your program and I am extremely happy that I found Math Mammoth.

Best Regards,
Karin from NJ
April 2011

Dear Maria,
I just had to send you a message to tell you about our recent proof of success using Math Mammoth. Our state requires standardized tests each year for homeschoolers and we just received this year's scores for my daughter in the mail. We started using Math Mammoth during the second half of my daughter's 4th grade year and used it for the complete 5th grade year which has just concluded. Even though we used the 4th grade level Light Blue book for her 5th grade year, her Math Total score jumped 36 percentage points from last year to this year! Especially taking into consideration that she was taking a 5th grade level test, I find that level of improvement absolutely remarkable! Thank you so much for such a wonderful product that is so wonderfully easy to use!

Robin Lindblad
June 2010

Hi there, I have to say, I'm thrilled with the work books! My 11 yo was really struggling. Although her grades claimed a math aptitude, she was missing many concepts. We also discovered that our province was a year behind! She is currently working through the 4th grade book and doing extremely well.

May 2010

Review: Math Mammoth grade 4 from Let's Play Math blog

TOS Review: Math Mammoth by Books and Bairns blog

We have been using the lightblue series level 4-A. I really have been raving about it since.

My son was lost in the math jungle, until we got your program. He just did not understand the other program we were trying. It had new material everyday and he did not understand the concept learned or the new one being taught. He needed my help to complete every problem and was falling behind in math. So, I got on the computer and browsed through your material again. I had been looking at it, but no one that I knew of was using the light blue series.

Well, it took me all of about 10 minutes to get my file. We began the series the next day, after about a week or so I could tell that things were finally sticking. He is already catching up in areas where he was having great difficulty before. The reason for this I believe is how each lesson/chapter is set up. Each lesson and chapter build on one another, but the student is given plenty of examples on how to do the work and plenty of practice without beating a dead horse, so to speak. He now feels smart in math and for that you can not put a price tag on. I also feel that your materials are very affordable, most math programs cost a great deal more, but in my opinion are not quite so thorough. Thanks for creating such a simple yet effective way to learn math.

1 December, 2008

How and where to order

You can buy Math Mammoth books at:

  • Here at website — simply use the "Add to cart" buttons you see on the product pages.
  • carries all Blue, Golden, and Light Blue series books as downloads. They accept credit cards and Paypal. You will be able to download the products immediately upon the purchase, and also return to your account at CurrClick to redownload.
  • Rainbow Resource carries printed copies for the Light Blue series books, plus several CDs (Light Blue and Blue series).
  • Homeschool Buyers Co-op offers download versions of the Light Blue series, plus the Blue series bundle.
  • Educents carries download versions of the Light Blue and Blue series.
  • K5 Learning offers download versions of the Blue series.
  • Lulu offers printed copies for the Blue, Golden, and Light Blue series books.

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. You will need Adobe Reader to view them, including if you use a Mac or Linux. You can try other PDF viewers, but they seem to either omit or mess up some of the images.

Math Mammoth Tour

Confused about the different options? Take a 7-day virtual email tour around Math Mammoth! You'll receive:

An initial email to download your GIFT of over 400 free worksheets and sample pages from my books; 6 other emails on 6 subsequent days that describe the different series of Math Mammoth products, answering the most commonly asked questions, including "What is the difference between all these different-colored series?"

This way, you'll have time to digest the information over one week, plus an opportunity to ask me personally which book would be right for your child or students.

Note: You will FIRST get an email that asks you to confirm your email address. If you cannot find this confirmation email, please check your SPAM/JUNK folder.

"Mini" Math Teaching Course

This is a little "virtual" 2-week course, where you will receive emails on important topics on mathematics education. The topics include:

- Teaching multiplication tables
- Why fractions are so difficult
- How to help a student who is behind
- Should you use timed tests
- The value of mistakes
- And more!

You will also receive a GIFT of over 400 free worksheets and sample pages from my books right in the very beginning. smile

Note: You will FIRST get an email that asks you to confirm your email address. If you cannot find this confirmation email, please check your SPAM/JUNK folder.

Math teaching tips & resources

Enter your email to receive math teaching tips, resources, Math Mammoth news & sales, humor, and more! I tend to send out these tips about once monthly, near the beginning of the month, but occasionally you may hear from me twice per month (and sometimes less often).

Peek at the previous tips here.

You will also receive:

  • A GIFT of over 400 free worksheets and sample pages from my books.
  • Once or twice a year, you may also receive an email where I promote something from — I simply want to spread the word about it.

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