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  3. Factors and Multiples
  4. Types of Numbers
  5. HCF and LCM
Grade 6
1. Large Numbers (7-Digit to 9-Digits)
2. Roman Numerals (up to 1000)
3. Whole Numbers
4. Integers
5. Factors and Multiples
5.1. Factors and Multiples of a Number
5.2. Finding Multiples of a Number
5.3. Types of Numbers
5.3.1. Odd and Even Numbers
5.3.2. Prime and Composite Numbers
5.3.3. Twin Primes
5.3.4. Prime Triplet
5.3.5. Co-Primes
5.3.6. Perfect Numbers
5.3.7. Tests of Divisibility
5.3.8. Prime Factorization of a Number
5.3.9. HCF and LCM
5.3.9.1. HCF (Highest Common Factor)
5.4. LCM (Lowest Common Multiple)
6. Fractions
7. Decimals
8. Simplification
9. Ratio and Proportion
10. Unitary Method
11. Algebraic Expressions
12. Linear Equations in One Variable
13. Mensuration
14. Geometry
15. Three Dimensional (3-D) Shapes
16. Linear Symmetry
17. Data Handling

Grade 6 China School Math HCF and LCM

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