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Math Mammoth Division 2

Math Mammoth Division 2 is a continuation from the Math Mammoth Division 1 book. It includes lessons on division, long division, remainder, problem solving, average, divisibility, and factors. The book is most suitable for fourth grade.

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.

We start out by reviewing basic division with single-digit numbers. Then students study division terms and dividing by whole tens and hundreds.

The lesson Finding Fractional Parts with Division shows an important relationship between fractions and division. For example, we can find 3/4 of a number by first finding 1/4 (divide by 4), then multiplying that result by 3.

Next we briefly study the order of operations, this time including divisions in the problems.

In the lesson The Remainder, Part 1, we study the concept of remainder, first using pictures and small numbers. In the second lesson on remainder, we still use small numbers, but students work the problems using the long division symbol or “corner,” as I like to call it. That is of course preparing them for long division.

Next, long division is taught in several small steps over many lessons. We start with the situation where each of the thousands, hundreds, tens, and ones can be divided evenly by the divisor. Then is introduced the remainder in the ones. Next comes the situation where we have a remainder in the tens. Finally, we have a remainder in the hundreds, and so on. We also have lots of word problems to solve.

After long division is mastered, we study the concept of average and problem solving involving a fractional part of a whole.  I have included many bar diagrams and pictorial representations of these problems to help the students.

The last section deals with elementary number theory topics. We study some basic divisibility rules (though not all of them), prime numbers, and find all factors of a given two-digit number.

Answers are at the end of the book.


How to teach long division

The video below shows the same basic steps as are used in the Math Mammoth Division 2 book to teach long division:

See more Math Mammoth videos!


You might also be interested in:
  • Math Mammoth Division 1—a worktext dealing with basic division concept, division tables, remainder, and word problems (grade 3).
  • Math Mammoth Multiplication 2—a worktext about multi-digit multiplication, order of operations, estimation, and word problems (grade 4).
  • Math Mammoth Multiplication & Division 3—a worktext about multi-digit multiplication and long division with larger numbers, ratios, simple equations, divisibility, primes, and factoring (grades 5-6).
  • Make It Real Learning: Arithmetic I—an activity workbook with real-world data, focusing on situations that use addition, subtraction, estimation, division, bar graphs, and place value with large numbers (grades 3-6).


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    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.


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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.

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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.

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