Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 499 · 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. 1.14 × 11 =
2. 2.14 × 12 =
3. 3.13 × 6 =
4. 4.1015 × 977 =
5. 5.9 × 7 =
6. 6.105 × 104 =
7. 7.98 × 92 =
8. 8.11 × 7 =
9. 9.14 × 14 =
10. 10.14 × 14 =
11. 11.14 × 11 =
12. 12.90 × 98 =
13. 13.101 × 94 =
14. 14.107 × 97 =
15. 15.7 × 6 =
16. 16.9 × 7 =
17. 17.101 × 94 =
18. 18.87 × 90 =
19. 19.87 × 96 =
20. 20.1037 × 1013 =
21. 21.109 × 105 =
22. 22.111 × 107 =
23. 23.97 × 92 =
24. 24.1026 × 977 =
25. 25.105 × 106 =
26. 26.110 × 93 =
27. 27.12 × 12 =
28. 28.89 × 91 =
29. 29.94 × 99 =
30. 30.85 × 88 =
31. 31.96 × 93 =
32. 32.105 × 104 =
33. 33.1030 × 966 =
34. 34.110 × 114 =
35. 35.108 × 105 =
36. 36.1015 × 1021 =
37. 37.98 × 93 =
38. 38.1008 × 995 =
39. 39.108 × 112 =
40. 40.1027 × 1012 =

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