Units Digit

Duration: 14m 43s

The video, "Integers Pt 7 – Units Digits," explains the importance of the units digit (the rightmost digit) in identifying patterns and simplifying complex calculations on the GMAT. You’ll learn how to predict the units digit in sums, products, and powers by observing patterns—especially when a digit is raised to various powers. The video includes detailed examples for digits like 1, 2, 3, and 4, and encourages pattern recognition for other digits—a powerful tool for number sense problems.

Login to mark as watched

Comments

Sign up to view and post comments on this video.

Integers Lessons
  • 1. Introduction to Integers (5m 43s)
  • 2. Divisibility, Factors, Multiples, LCM and HCF (11m 31s)
  • 3. Divisibility Rules (9m 53s)
  • 4. Prime Numbers and Prime Factorisation (11m 55s)
  • 5. Even and Odd Numbers (9m 49s)
  • 6. Consecutive Integers (15m 44s)
  • 7. Units Digit (14m 43s)
  • 8. Digits (10m 2s)
  • 9. Sequences and Series (25m 40s)
  • 10. More Prime Factorisation (31m 13s)
  • 11. Divisibility and Remainders (9m 19s)
  • 12. Fractions and Decimals (17m 59s)