



The Primary Mathematics U.S. Edition series of elementary math textbooks and workbooks is meant to be part of a system of learning in which adult supervision and independent practice go hand in hand. The main feature of this series is the use of the Concrete> Pictorial>Abstract approach. The students are provided with the necessary learning experiences beginning with the concrete and pictorial stages, followed by the abstract stage to enable them to learn mathematics meaningfully. This approach encourages active thinking process, communication of mathematical ideas and problem solving. This helps develop the foundation students will need for more advanced mathematics.
Practice exercises are designed to provide the students with further practice after they have done the relevant workbook exercises. Review exercises are provided for cumulative reviews of concepts and skills. All the practice exercises and review exercises are optional exercises.
The color patch is used to invite active participation from the students and to facilitate oral discussion. The students are advised not to write on the color patches.
Above extract from Preface of Primary Mathematics U.S. Edition (reproduced with the permission of the publishers).
The textbooks contain the learning tasks for students to do under adult supervision and interaction, along with practice and review problems. They are meant to be nonconsumable and to be used along with the Primary Mathematics Workbooks.
Answers or answer keys for Primary Mathematics U.S. Edition textbooks and workbooks are found in the teacher's guides and home instructor's guides. Answer keys booklets are also available  one for Primary 13 and one for Primary 46.
Primary Mathematics U.S. Edition 3A
Units highlighted in red are in this U.S. Edition but not in the 3rd Edition of Primary Mathematics.
1. Numbers to 10,000
 Thousands, Hundreds, Tens and Ones
 Numbers Patterns
2. Addition and Subtraction
 Sum and Difference
 Add Ones, Tens, Hundreds and Thousands
 Twostep Word Problems
3. Multiplication and Division
 Looking Back
 More Word Problems
 Multiplying Ones, Tens and Hundreds
 Quotient and Remainder
 Dividing Hundreds, Tens and Ones
REVIEW A
4. Multiplication Tables of 6, 7, 8 and 9
 Looking Back
 Multiplying and Dividing by 6
 Multiplying and Dividing by 7
 Multiplying and Dividing by 8
 Multiplying and Dividing by 9
5. Money (U.S. currency)
 Dollars and Cents
 Addition
 Subtraction
REVIEW B
Samples
Chapter 1: Numbers to 10,000  Thousands, Hundreds, Tens and Ones Chapter 3: Multiplication and Division  More Word Problems Chapter 4: Multiplication Tables of 6, 7, 8 and 9  Multiplying and Dividing by 6 Chapter 4: Multiplication Tables  Practice 4B
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