Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 399 · 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. 1.1012 × 1039 =
2. 2.111 × 112 =
3. 3.12 × 14 =
4. 4.96 × 96 =
5. 5.1035 × 1038 =
6. 6.95 × 99 =
7. 7.102 × 103 =
8. 8.113 × 104 =
9. 9.998 × 977 =
10. 10.102 × 101 =
11. 11.88 × 98 =
12. 12.105 × 88 =
13. 13.113 × 113 =
14. 14.106 × 99 =
15. 15.86 × 90 =
16. 16.107 × 102 =
17. 17.6 × 8 =
18. 18.107 × 97 =
19. 19.971 × 992 =
20. 20.89 × 86 =
21. 21.94 × 85 =
22. 22.1026 × 1012 =
23. 23.85 × 96 =
24. 24.99 × 86 =
25. 25.99 × 91 =
26. 26.106 × 94 =
27. 27.994 × 995 =
28. 28.108 × 88 =
29. 29.97 × 90 =
30. 30.101 × 115 =
31. 31.9 × 7 =
32. 32.985 × 979 =
33. 33.12 × 14 =
34. 34.96 × 99 =
35. 35.1009 × 975 =
36. 36.98 × 88 =
37. 37.89 × 85 =
38. 38.12 × 14 =
39. 39.8 × 8 =
40. 40.106 × 110 =

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