Math Mammoth Add & Subtract 3 is a self-teaching worktext that deals with various adding and subtracting topics, this time with three-digit numbers. This book is suitable to study right after the student has learned place value till 1000 and best fits second or third grade math; however it is not in tied to any grade level. The goal of Math Mammoth Add & Subtract 3 is to add and subtract both mentally and in columns within 0-1000. In most lessons the addition or subtraction is first illustrated with pictures so the student can learn the concepts. The book explains in detail how to carry when adding in columns, and how to borrow when subtracting in columns. Besides problems practicing these processes, many of the lessons also have word problems, puzzles, problems with money, and other types of exercises. Full answers are appended to the book.

Sample Pages (PDF):

Contents and Introduction
Add & Subtract Whole Hundreds
Completing the Next Hundred
Addition/Subtraction Connection
Regrouping Twice in Subtraction
Subtracting 3-Digit Numbers Mentally

Math Mammoth Place Value 3 is a self-teaching work text that focuses in on 4-digit numbers: it teaches place value with thousands, and adding and subtracting 4-digit numbers. The book is not tied to any grade level but best suits third grade. The emphasis is on trying to get familiar with numbers that have thousands and 'visualize' them on a number line. Rounding and estimating are also included - very important skills needed in everyday life. The book practices adding and subtracting 4-digit numbers both mentally and in columns. Order of operations is studied as concerning addition and subtraction, including several connections with algebraic thinking.

Sample Pages (PDF):

Contents
Four-Digit Numbers and Place Value 
Subtract 4-Digit Numbers with Regrouping
Rounding to Nearest Hundred

This text is a basic tool - a self-teaching, self-explanatory worktext - to learn multiplication concept and the times tables. It lets children first learn well the multiplication concept itself, tying it in with number lines, rows and columns, multiplying by zero, some word problems, and order of operations. Then the second part practices all the times tables. In each lesson student fills the 12 x 12 grid up to those facts that are already memorized and can clearly see the progress and how little is still left. Math Mammoth Multiplication 1 always shows the patterns found in the times tables - and emphasizes doing it 'backwards' to facilitate later learning of division. Full answers are included.

Sample Pages (PDF):

Contents & Introduction
Many Times the Same Group
Multiplication as an Array
Multiplication on Number Line
Understanding Word Problems
Table of 8

This text is a self-teaching, self-explanatory worktext for learning the concept of division in third or fourth grade. Math Mammoth Division 1 emphasizes understanding division and practicing divisions that are based on the multiplication tables. How zero and one work in division is also studied, and the concepts of divisibility and remainder. An answer key is appended at the end of the book.

Sample Pages (PDF):

Contents and Introduction
Dividing Evenly into Groups
Division and Multiplication Facts
Zero And One in Division
When Division is Not Exact and Remainder
Divisibility

Math Mammoth Geometry 1 is a self-teaching worktext that gives a thorough view of basic plane geometry, as taught in elementary grades. The emphasis is on learning through drawing. This hands-on type of learning allows students to draw and thereby learn, making use of certain guided exercises. The idea is that if he can draw it, then he understands it. Math Mammoth Geometry 1 is a complete unit of geometry and not tied to any specific grade level. It is suitable for 3rd, 4th, and 5th (even sixth) grade. It is also excellent for self-teaching studies even at higher levels where review is needed. Full answers are included.

Sample pages:(PDF)

Contents
Review: Area of Rectangles
Measuring Angles
Triangles
Circles
Volume of Rectangular Prisms

Math Mammoth Subtraction 1 is a self-teaching workbook that deals with the subtraction concept within 0-10, initially as 'taking away', but soon presenting other situations where subtraction is used: * Finding how much MORE something is as compared to something else - the difference. * Two (or more) parts making up a whole (of something). This is approached as a missing addend problem. All these situations are taught explicitly and can be found in the word problems throughout the book. Also, students learn to use the addition facts to find the answer to subtraction - in essence to memorize the basic subtraction facts, which are based on the addition facts. While this book is not tied to any grade level, it is most suitable for first grade. Answers are appended. This book ties closely in with Math Mammoth Addition 1.

Sample Pages (PDF):

Contents 
Subtraction Is Taking Away 
Subtraction and Addition in the Same Picture 
Fact Families 
Addition and Subtraction Facts with 6

Although the book is named, “The Four Operations,” please notice that the idea is not to practice each of the four operations separately, but rather to see how they are used together in solving problems and in simple equations. We are trying to develop student's algebraic thinking, including the abilities to: translate problems into mathematical operations, comprehend the many operations needed to yield an answer to a problem, “undo” operations, and so on. Many of the ideas in this chapter are preparing them in advance for algebra.

Suitable for Year 5 to Year 7

Sample pages (PDF)
Contents and Introduction
Multiplication and Division
More Equations
Order of Operations & Equations
Number Patterns in the Coordinate Grid

The lessons cover measuring length, weight, and volume, measuring temperature in the Celsius scale, the 24-hour clock and elapsed time, and in general using decimals within the metric system. While the book contains something for all grades from Year 1 to Year 4, the bulk of the lessons are targeted for Year 2 and Year 3.

Sample pages (PDF)
Contents
Centimeters and Millimeters
Measuring Length
Measuring Weight in Metric System
Volume
Temperature in Celsius

Math Mammoth Measuring 2 is a worktext that covers time, temperature, length, weight, and volume related lessons, aimed for Year 4 to Year 5. The focus in these lessons is no longer on the actual act of measuring (as was the case in earlier books), but on calculations that involve conversions between different measuring units.

Sample pages (PDF)
Contents
Measuring Length
Metric Units Measuring Length
Feet, Yards, and Miles
Measuring Weight in the Metric System
Fractions and Decimals in Measuring Units