Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 33 · 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. 1.93 × 95 =
2. 2.106 × 94 =
3. 3.91 × 91 =
4. 4.14 × 12 =
5. 5.86 × 98 =
6. 6.105 × 110 =
7. 7.1002 × 1023 =
8. 8.113 × 92 =
9. 9.104 × 95 =
10. 10.111 × 89 =
11. 11.1003 × 993 =
12. 12.102 × 107 =
13. 13.8 × 9 =
14. 14.102 × 105 =
15. 15.98 × 99 =
16. 16.115 × 88 =
17. 17.11 × 11 =
18. 18.1025 × 1014 =
19. 19.107 × 115 =
20. 20.94 × 90 =
21. 21.982 × 990 =
22. 22.1010 × 984 =
23. 23.8 × 7 =
24. 24.982 × 962 =
25. 25.112 × 105 =
26. 26.103 × 114 =
27. 27.13 × 11 =
28. 28.12 × 9 =
29. 29.1017 × 993 =
30. 30.108 × 96 =
31. 31.975 × 992 =
32. 32.89 × 98 =
33. 33.87 × 97 =
34. 34.984 × 961 =
35. 35.88 × 98 =
36. 36.87 × 86 =
37. 37.992 × 995 =
38. 38.94 × 92 =
39. 39.11 × 9 =
40. 40.107 × 109 =

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