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Abacus Mathematics

5B: Fifth grade part 2 of 2

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The topics that will be covered in this textbook include the followings:

Chapter 1 Decimals
1 Approximation and Estimation
2 Multiplication by Tens, Hundreds or Thousands
3 Division by Tens, Hundreds or Thousands
4 Multiplying by a 2-digit Whole Number
5 Conversion of Measurements

Chapter 2 Percentage
1 Percentage
2 Writing Fractions as Percentages
3 Percentage of a Quantity

Chapter 3 Average
1 Average

Chapter 4 Rate
1 Rate

Chapter 5 Graphs
1 Line Graphs

Chapter 6 Triangles
1 Sum of Angles of a Triangle
2 Isosceles and Equilateral Triangles
3 Drawing Triangles

Chapter 7 4-sided Figures
1 Parallelograms, Rhombuses and Trapezoids
2 Drawing Parallelograms and Rhombuses

Chapter 8 Tessellations
1 Tiling Patterns

Chapter 9 Volume
1 Cubes and Cuboids
2 Finding the Volume of a Solid


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Lesson 1.1. Decimals: Approximation and Estimation

Lesson 1.2. Decimals: Multiplication by Tens, Hundreds or Thousands

Lesson 1.3. Decimals: Division by Tens, Hundreds or Thousands

Lesson 1.4. Decimals: Multiplying by a 2-digit Whole Number; 1.5. Conversion of Measurements

Lesson 1.5. Decimals: Conversion of Measurements

Lesson 2.1. Percentage: Percentage

Final Review


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