4. Integers 
 5.1.1. Finding Factors of a Number 
 5.1.5. Types of Numbers 
 5.1.5.1. Odd and Even Numbers 
 5.1.5.2. Prime and Composite Numbers 
 5.1.5.3. Twin Primes 
 5.1.5.4. Prime Triplet 
 5.1.6. Co-Primes 
 5.1.7. Perfect Numbers 
 5.4. HCF and LCM 
 6. Fractions 
 7. Decimals 
 10. Unitary Method 
 13. Mensuration 
 14. Geometry 
 16. Linear Symmetry 
 17. Data Handling 
 Philippines
 Philippines 
        