Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 817 · 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. 1.111 × 86 =
2. 2.985 × 999 =
3. 3.14 × 13 =
4. 4.93 × 86 =
5. 5.7 × 8 =
6. 6.8 × 7 =
7. 7.114 × 99 =
8. 8.1019 × 994 =
9. 9.12 × 6 =
10. 10.102 × 109 =
11. 11.97 × 98 =
12. 12.95 × 91 =
13. 13.98 × 89 =
14. 14.88 × 99 =
15. 15.13 × 14 =
16. 16.9 × 8 =
17. 17.1035 × 1004 =
18. 18.101 × 89 =
19. 19.8 × 9 =
20. 20.105 × 94 =
21. 21.110 × 112 =
22. 22.107 × 107 =
23. 23.101 × 99 =
24. 24.14 × 14 =
25. 25.1006 × 994 =
26. 26.98 × 95 =
27. 27.1024 × 1034 =
28. 28.92 × 99 =
29. 29.982 × 996 =
30. 30.105 × 104 =
31. 31.86 × 86 =
32. 32.7 × 7 =
33. 33.97 × 96 =
34. 34.115 × 91 =
35. 35.85 × 90 =
36. 36.111 × 103 =
37. 37.97 × 98 =
38. 38.106 × 94 =
39. 39.12 × 11 =
40. 40.97 × 90 =

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