Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 490 · 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. 1.101 × 115 =
2. 2.11 × 9 =
3. 3.99 × 95 =
4. 4.101 × 112 =
5. 5.102 × 99 =
6. 6.13 × 14 =
7. 7.109 × 102 =
8. 8.96 × 96 =
9. 9.89 × 96 =
10. 10.112 × 108 =
11. 11.95 × 95 =
12. 12.115 × 94 =
13. 13.96 × 96 =
14. 14.85 × 89 =
15. 15.12 × 12 =
16. 16.9 × 6 =
17. 17.115 × 89 =
18. 18.105 × 106 =
19. 19.11 × 8 =
20. 20.101 × 113 =
21. 21.1019 × 1006 =
22. 22.13 × 14 =
23. 23.105 × 103 =
24. 24.85 × 85 =
25. 25.91 × 93 =
26. 26.94 × 92 =
27. 27.982 × 992 =
28. 28.97 × 91 =
29. 29.14 × 14 =
30. 30.96 × 93 =
31. 31.8 × 9 =
32. 32.976 × 975 =
33. 33.8 × 9 =
34. 34.110 × 89 =
35. 35.1030 × 992 =
36. 36.105 × 112 =
37. 37.11 × 14 =
38. 38.110 × 99 =
39. 39.112 × 101 =
40. 40.87 × 93 =

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