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  3. Arithematic
  4. Numbers
  5. Prime and Composite Numbers
  6. Co-Primes

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Navodaya Vidyalaya
1. Logical Reasoning
2. Arithematic
2.1. Numbers
2.1.1. Successor and Predecessor
2.1.2. Odd and Even Numbers
2.1.3. Prime and Composite Numbers
2.1.3.1. Understanding Prime and Composite Numbers
2.1.3.2. Composite Numbers
2.1.3.3. Prime Numbers
2.1.3.4. Properties of Composite and Prime Numbers
2.1.3.5. Twin Primes
2.1.3.6. Prime Triplet
2.1.3.7. Co-Primes
2.2. Four Fundamental Operations
2.3. Fractions
2.4. Factors and Multiples
2.5. Decimals
2.6. Unitary Method
2.7. Rounding Numbers
2.8. Percentage
2.9. Profit and Loss
2.10. Simple Interest
2.11. Simplification of Numerical Expressions
2.12. Mensuration
2.13. Time
2.14. Data Interpretation
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