Sri Lanka
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- Grade 5
- Factors and Multiples
- Prime Factors of a Number
- By Factor Tree Method
1.2.1. Successor of a Number
1.2.2. Predecessor of a Number
1.3. Place of a Digit
1.5. n Digit Numbers
1.6.1. Addition of Large Numbers
1.6.2. Subtraction of Large Numbers
1.6.4. Division of Large Numbers
4.1.1. Finding Factors of a Number
4.1.5. Types of Numbers
4.1.5.1. Odd and Even Numbers
4.1.5.2. Prime and Composite Numbers
4.1.5.2.1. Definition
4.1.5.2.2. Composite Numbers
4.1.5.2.3. Prime Numbers
4.1.5.2.4. Properties of Composite and Prime
4.1.5.3. Twin Primes
4.1.5.4. Co-Primes
4.2.1. Test Divisibility by 2
4.2.2. Test Divisibility by 3
4.2.3. Test Divisibility by 4
4.2.4. Test Divisibility by 5
4.2.5. Test Divisibility by 6
4.2.6. Test Divisibility by 7
4.2.7. Test Divisibility by 8
4.2.8. Test Divisibility by 9
4.2.9. Test Divisibility by 10
4.2.10. Test Divisibility by 11
4.4. HCF and LCM
4.4.1. HCF (Highest Common Factor)
4.4.2. LCM (Lowest Common Multiple)
4.4.3. Properties of LCM and HCF
4.4.4. Word Problems on HCF and LCM
5. Fractions
5.2. Unit Fraction
5.4. Equivalent Fractions
5.6. Compare Fractions
5.7.1. Addition of Fractions
5.7.1.1. Addition of Like Fractions
5.7.1.2. Addition of Unlike Fractions
5.7.1.3. Addition of Mixed Fractions
5.7.2. Subtraction of Fractions
5.7.2.1. Subtraction of Like Fractions
5.7.2.2. Subtraction of Unlike Fractions
5.7.2.3. Subtraction of Mixed Fractions
5.8.1. Multiplication of Fractions
5.8.1.3. Use of 'OF'
5.8.2. Division of Fractions
6. Decimals
6.2. Place Value Chart
6.6. Comparing Decimals
6.7. Ordering Decimals
6.8.1.1. Convert Decimals to Proper Fractions
6.8.1.3. Convert Decimals to Mixed Fractions
6.9.1.1. Addition of Decimals
6.9.1.2. Subtraction of Decimals
6.10.1. Multiplication of Decimals
6.10.1.2. Multiplying a Decimal by a Whole Number
6.10.1.3. Multiplication of Two/Three Decimals
6.10.2. Division of Decimals
6.10.2.3. Division of a Decimal by a Whole Number
6.10.2.4. Division of a Decimal by a Decimal
6.10.2.5. Division of a Whole Number by a Decimal
6.10.2.6. Word Problems on Division of Decimals
8. Measurement
8.1.2.1. Addition of Lengths
8.1.2.2. Subtraction of Lengths
8.1.3.1. Multiplication of Lengths
8.1.3.2. Division of Lengths
8.2.2.1. Addition of Weights
8.2.2.2. Subtraction of Weights
8.2.3.1. Multiplication of Weights
8.2.3.2. Division of Weights
9. Average
10. Percentage
11. Time
12. Money
13. Geometry
13.2. Angles
13.2.1. Introduction to Angles
13.2.4. Types of an Angle
13.3. Types of Lines
13.3.1. Parallel Lines
13.3.2. Perpendicular Lines
13.3.3. Intersecting Lines
13.3.4. Identifying the Type of Line
13.4. Set Squares
13.6. Triangles
13.7. Circle
13.7.1. Terms Related to a Circle
13.7.2. Radius and Diameter of a Circle
13.7.4. Concentric Circles
14. Perimeter
15. Area
15.1. Area of a Rectangle
15.2. Area of a Square
16. Volume
16.1. Volume of a Cuboid
16.2. Volume of a Cube
17. Data Handling
17.1. Pictographs
17.2. Bar Graphs
17.2.1. Drawing Bar Graphs
17.2.2. Interpreting Bar Graphs
17.3. Pie Charts
18. Exponents
19. Problem solving
19.2. Word Problems
19.2.2. Multi-step word problems
19.2.2.1. Simple multi-step problems
19.2.2.4. Miscellaneous problems
20. Number sequences
20.2. Compare patterns
21. Coordinate plane
22.4. Solve the equations
22.4.1. With whole numbers
22.4.2. With decimals
22.6. Questions on graph
24.1. Line symmetry
24.2. Rotational symmetry
25.1. Revisiting concepts
25.2. Types of polygons
25.3. Lines and its type
25.4. Various angles
25.6. Properties of polygons
25.7. Venn diagrams
25.8. Parts of a circle
27.1. Identify types of taxes
27.8. Evaluate payment methods
27.10. Keeping financial records
27.11. Budget
Grade 5 Sri Lanka School Math By Factor Tree Method
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