6. Probability
7.1. Square of a Number
7.1.1. Square of a Number
7.1.5. Pythagorean Triplets
7.2. Square Root
9. Percentage
10. Profit and Loss
14. Mensuration
17. Time and Work
18. Factorization
Class 8 NCERT (CBSE and ICSE) Product Of Two Consecutive Odd Or Consecutive Even Numbers
Master this topic as part of Square of a Number