People who buy Math Mammoth Blue Series books use them for many different purposes: as a supplement to a main curriculum, for review, or for initial teaching, even to teach adults. They are selfteaching worktexts that concentrate on one or a few topics per book, which makes them suitable for various teaching scenarios.
I have not originally written the Blue Series books to be a complete curriculum, but you can use them as such. The books are complete for grades 17, and even cover some topics for 8th grade (Pythagorean Theorem; linear equations, geometric transformations).
People have frequently asked me in what order the books should be studied. The following is an outline or a suggestion for the study order of the books.
Books  Notes 
GRADE 1  
Addition
1 Subtraction 1 Place Value 1 
You could study Addition 1 and Place Value 1 somewhat simultaneously, or back and forth, and after those, go into Subtraction 1. The focus is on tens and ones, concept of addition, concept of subtraction, and memorizing basic addition/subtraction facts within 010 
GRADES 12  
Parts of: Clock Money Measuring 1 Early Geometry Introduction to Fractions 
The money and measuring books span about three grade levels (grades 13), and you can decide to study these topics in between various books, however you like. Introduction to Fractions is approximately for grades 24, and Clock is for grades 14. Your student can go through some of the first lessons from these two. 
GRADE 2  
Add & Subtract 2A Add & Subtract 2B Place Value 2 Data and Graphs 
The first two books deal with different aspects of adding and subtracting within 0100, and are best studied in this order. Place Value 2 is about hundreds, tens, and ones. Data and Graphs is for grades 25, and your student can go through some of the first lessons from it. 
GRADE 3  
Add & Subtract 3 Multiplication 1 Division 1 Place Value 3 
These books are specifically for grade 3. They can be studied in any order, except the student needs to study Multiplication 1 before Division 1. 
Rest of: Money Measuring 1 Early Geometry 
These books span about three grade levels (grades 13), and you may decide to study these topics in between various other books, however you like. 
Clock Introduction to Fractions Data and Graphs 
Introduction to Fractions is approximately for grades 24, Data and Graphs for grades 25, and Clock is for grades 14. You can go through some of the middle lessons in these books. 
GRADE 4  
Add & Subtract 4 Place Value 4 Multiplication 2 Division 2 Decimals 1 
These books deal with addition and subtraction terminology & strategies, decimals, problem solving, graphs, long multiplication and long division. They are all about 4th grade level. 
Introduction to Fractions Data and Graphs Factors & Factoring 
Introduction to Fractions is approximately for grades 24. Have your student study the latter part of this book. Data and Graphs for grades 25. The student can go through some of the middle lessons in this book. Factors & Factoring is for grades 46; divisibility, primes, and finding factors are topics for grade 4. 
Measuring 2 Geometry 1 
These two books are fairly independent of the others, and can fit into many places. The material is for grades 45. 
GRADE 5  
Multiplication Division 3 Fractions 1 Fractions 2 Decimals 2 Place Value 5 
With the exception of the Four Operations book (it's for grades 56), these books are for grade 5. The order of study is a suggestion only. You could study these topics in several different orders, or even simultaneously. 
Factors & Factoring  From this book, the topic for 5th grade is prime factorization. 
The rest of: Measuring 2 Geometry 1 
These two books are for grades 45. 
GRADE 6  
Fractions & Decimals 3 Geometry 2 
These books can be studied in most any order, or even sidebyside simultaneously. The book Fractions & Decimals 3 goes through all of fraction and decimal arithmetic, quicker than the fraction and decimal books listed before, and with more decimal digits and larger denominators. Before studying Geometry 2, the student should know the basics of percent. 
Factors & Factoring  From this book, the topics for 6th grade are: LCM, GCF, and factoring sums. 
The beginning portions (the first half) of: Percent Integers Statistics & Probability 
The first halves of these books are for 6th grade. 
GRADE 7  
The rest of: Percent Integers Statistics & Probability 
The latter halves of these books are technically 7th grade material. 
Expressions & Equations Rational Numbers Linear Equations Geometry 3 
These books are suitable for 7th8th grades and cover prealgebra topics. They are best studied in the order presented here. 
GRADE 8  
Exponents and Scientific Notation Linear Equations Geometry 4 
These books cover topics for 8th grade. 
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