Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 483 · 40 sums

The trick (Nikhilam Navatashcaramam Dashatah): Write how far each number is from the base (− if below, + if above). Left part: cross-add — one number plus the other’s difference. Right part: multiply the two differences; it must have as many digits as the base has zeros (carry the extra). One above and one below? The right part is negative: take 1 from the left part and write base − that amount.

1. 1.105 × 99 =
2. 2.105 × 111 =
3. 3.9 × 8 =
4. 4.113 × 107 =
5. 5.107 × 96 =
6. 6.13 × 8 =
7. 7.1001 × 1026 =
8. 8.11 × 12 =
9. 9.992 × 980 =
10. 10.91 × 98 =
11. 11.98 × 96 =
12. 12.94 × 97 =
13. 13.93 × 96 =
14. 14.13 × 9 =
15. 15.14 × 11 =
16. 16.104 × 95 =
17. 17.6 × 8 =
18. 18.104 × 101 =
19. 19.90 × 96 =
20. 20.998 × 963 =
21. 21.1031 × 1016 =
22. 22.95 × 94 =
23. 23.114 × 113 =
24. 24.110 × 98 =
25. 25.87 × 91 =
26. 26.90 × 99 =
27. 27.1030 × 1013 =
28. 28.115 × 111 =
29. 29.98 × 96 =
30. 30.99 × 86 =
31. 31.13 × 11 =
32. 32.104 × 113 =
33. 33.14 × 14 =
34. 34.86 × 97 =
35. 35.8 × 9 =
36. 36.85 × 86 =
37. 37.8 × 8 =
38. 38.89 × 99 =
39. 39.9 × 9 =
40. 40.96 × 93 =

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