Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 506 · 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. 1.103 × 86 =
2. 2.104 × 110 =
3. 3.89 × 91 =
4. 4.981 × 993 =
5. 5.8 × 6 =
6. 6.103 × 95 =
7. 7.103 × 87 =
8. 8.111 × 115 =
9. 9.14 × 11 =
10. 10.90 × 85 =
11. 11.9 × 7 =
12. 12.106 × 101 =
13. 13.105 × 108 =
14. 14.103 × 108 =
15. 15.108 × 101 =
16. 16.1032 × 967 =
17. 17.99 × 90 =
18. 18.13 × 7 =
19. 19.93 × 98 =
20. 20.85 × 99 =
21. 21.1012 × 995 =
22. 22.105 × 105 =
23. 23.1006 × 982 =
24. 24.14 × 9 =
25. 25.11 × 13 =
26. 26.96 × 99 =
27. 27.112 × 101 =
28. 28.91 × 97 =
29. 29.109 × 104 =
30. 30.105 × 103 =
31. 31.8 × 6 =
32. 32.9 × 8 =
33. 33.1025 × 967 =
34. 34.7 × 7 =
35. 35.110 × 86 =
36. 36.92 × 96 =
37. 37.103 × 114 =
38. 38.1014 × 983 =
39. 39.91 × 87 =
40. 40.12 × 9 =

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