CT 6: Unit Digit

1.unit place of (2153) ×167 be 

2. What is the unit place digit of 679 × 671 × 56 × 5 ?

3. What is the unit digit of 724 × 476?  

4. What is the units digit of the number 3⁶²?

5. For what value of n, the number in the unit place of 3n becomes 0?

6. What is the unit digit of 384²²¹?

7. Find the units digit in 676 × 376 × 437 × 913 × 423 × 337 × 421. 

8. The digit in the unit's place of 2³⁰ is:

9. The number in the unit place in (623)³⁶ is -

10. The digit in the units place of the product 81 × 82 × 83 × 84 × ... × 99 is