- Learn more
- Discounted Bundles
PDF download $5.10
Printed copy $10.50, b&w
Printed copy £5.64, full color
US shipping available
Math Mammoth Subtraction 1 deals with various concepts related to basic subtraction, and with basic addition and subtraction facts within 0-10. Most of the problems in the book only use numbers up to 10, but a few include numbers between 10 and 20.
The PDF version of this book is enabled for annotation. This means that if you prefer, the student can fill it in on the computer, using the typewriter and drawing tools in Adobe Reader version 9 or greater.
The concept of subtraction is easy to illustrate with the idea of "taking away". If your child does not yet know the word "minus", it is a good idea to introduce it first orally. Simply use blocks, rocks, or other concrete objects. For example, show the child eight blocks, and take away three blocks. Then use both kinds of wordings: "Eight blocks, take away three blocks, leaves five blocks. Eight blocks minus three blocks equals five blocks."
Play with the blocks or other concrete objects until the child can use the words "minus" and "equals" in his/her own speech. This will make it much easier to introduce the actual written symbols.
The next step would be to abandon concrete objects and use semi-concrete illustrations or pictures. That is where this book starts with the lesson Subtraction Is "Taking Away". At this stage, the child can still figure out the subtraction problems by simply counting how many objects are left.
So, how does the student learn how to subtract without actually counting concrete objects or pictures? As a transitional strategy, we will study counting down: the student solves 9 − 3, for example, by counting down three steps from nine: eight, seven, six. So the answer is six.
However, the final goal is to learn to use the addition facts to find the answer to subtraction problems. For example, once the student knows that 5 + 5 = 10, then this fact is used to solve 10 − 5 = 5. For this purpose, the student must learn well the connection between addition and subtraction. This is why this book concentrates heavily on the connection between addition and subtraction with several lessons, ending up with the concept of fact families.
Besides "taking away", subtraction is also used for these two situations:
These two situations are dealt with in several lessons in the book and are found in various word problems throughout the book.
In the latter part of the book, we encounter several lessons named Addition and Subtraction Facts with... They aim at helping the child to memorize the basic addition and subtraction facts. We are approaching it from the concept of fact families.
These lessons have a lot of practice problems. Use your judgment as to whether your child will need to do all of the problems. If he/she masters the facts quickly, you can skip some of them. 4
Besides the written problems, I encourage you to use games that are explained below. Children like to play, and using the addition and subtraction facts in a game gives them fun and education in the same "package".
While this book is not tied to any grade level, it is most suitable for first grade.
My 4 year old just finished Subtraction 1. We've done Addition 1 and Place Value 1 this fall as well. He loves it! I found myself frustrated with Saxon Math K and found Math Mammoth last summer. We're going to breeze through Light Blue 1 this spring and have fun committing his math facts to memory. Thank you for a simple straight forward math program!
Better Yet - Bundle Deals!Blue Series - $120 (download) or $125 (CD)
Blue Series for grades 1-3 - $45 (download)
Blue Series for grades 4-7 - $75 (download)
Light Blue Series, grades 1-7 - $175 (download) or $180 (CD)
Light Blue Series, grades 1-3 - $75 (download)
Light Blue Series, grades 4-7 - $100 (download)
Golden/Green Series - $65 (download) or $70 (CD)
All Inclusive Bundle - $233 (download) or $238 (CD)
"Everything" Bundle - $299 (download only)
Learn more about these Math Mammoth bundles!
You can buy Math Mammoth books at:
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 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:
Join over 25,000 others!
Maria's Math Tips is my email publication that comes out usually once a month. It's filled with math teaching resources, Math Mammoth news & discounts, humor, giveaways, and more! The content is equally good for all of us who teach math.
By subscribing you will also receive:
© 2006-2017 MathMammoth.com