Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 165 · 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. 1.90 × 87 =
2. 2.8 × 6 =
3. 3.95 × 96 =
4. 4.12 × 8 =
5. 5.91 × 90 =
6. 6.14 × 14 =
7. 7.86 × 98 =
8. 8.1032 × 1006 =
9. 9.982 × 984 =
10. 10.95 × 90 =
11. 11.6 × 6 =
12. 12.105 × 102 =
13. 13.90 × 89 =
14. 14.998 × 961 =
15. 15.102 × 109 =
16. 16.996 × 990 =
17. 17.111 × 101 =
18. 18.99 × 95 =
19. 19.103 × 90 =
20. 20.98 × 97 =
21. 21.1031 × 1004 =
22. 22.9 × 9 =
23. 23.96 × 98 =
24. 24.86 × 94 =
25. 25.8 × 7 =
26. 26.11 × 9 =
27. 27.1024 × 1005 =
28. 28.110 × 107 =
29. 29.1037 × 998 =
30. 30.1035 × 1030 =
31. 31.14 × 11 =
32. 32.97 × 98 =
33. 33.106 × 103 =
34. 34.7 × 9 =
35. 35.101 × 103 =
36. 36.102 × 86 =
37. 37.11 × 13 =
38. 38.107 × 105 =
39. 39.102 × 95 =
40. 40.114 × 108 =

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