Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 355 · 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. 1.1009 × 981 =
2. 2.104 × 115 =
3. 3.13 × 12 =
4. 4.96 × 89 =
5. 5.12 × 11 =
6. 6.107 × 85 =
7. 7.94 × 97 =
8. 8.994 × 993 =
9. 9.94 × 96 =
10. 10.1031 × 1038 =
11. 11.102 × 103 =
12. 12.96 × 97 =
13. 13.98 × 94 =
14. 14.12 × 12 =
15. 15.94 × 97 =
16. 16.12 × 11 =
17. 17.110 × 101 =
18. 18.115 × 110 =
19. 19.93 × 87 =
20. 20.104 × 109 =
21. 21.104 × 107 =
22. 22.1015 × 984 =
23. 23.113 × 104 =
24. 24.91 × 96 =
25. 25.1032 × 982 =
26. 26.981 × 989 =
27. 27.1012 × 1013 =
28. 28.989 × 995 =
29. 29.109 × 108 =
30. 30.92 × 97 =
31. 31.102 × 96 =
32. 32.107 × 86 =
33. 33.6 × 7 =
34. 34.91 × 90 =
35. 35.11 × 14 =
36. 36.14 × 13 =
37. 37.104 × 111 =
38. 38.104 × 109 =
39. 39.92 × 91 =
40. 40.12 × 9 =

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