1. Add: 42,311 + 65,36,624

2. Add: 24,12,636 + 23,19,058

3. Add: 29 + 726 + 51,36,274

4. Add: 23,45,678 + 9,87,654

5. Add: 22 + 6,047 + 3,84,527

6. Subtract: 68,34,501 - 23,57,823

7. Subtract: 45,43,827 - 12,05,938

8. Subtract: 70,12,345 - 28,64,547

9. Subtract: 27,450 - 22,975

10. Subtract: 44,730 - 43,150