Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 375 · 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. 1.1033 × 999 =
2. 2.107 × 101 =
3. 3.103 × 111 =
4. 4.109 × 102 =
5. 5.87 × 89 =
6. 6.999 × 968 =
7. 7.14 × 13 =
8. 8.11 × 13 =
9. 9.90 × 96 =
10. 10.104 × 109 =
11. 11.95 × 88 =
12. 12.85 × 87 =
13. 13.102 × 98 =
14. 14.98 × 98 =
15. 15.1009 × 977 =
16. 16.89 × 99 =
17. 17.960 × 992 =
18. 18.108 × 115 =
19. 19.91 × 91 =
20. 20.6 × 9 =
21. 21.9 × 9 =
22. 22.7 × 6 =
23. 23.14 × 9 =
24. 24.14 × 11 =
25. 25.107 × 115 =
26. 26.102 × 87 =
27. 27.112 × 113 =
28. 28.111 × 102 =
29. 29.112 × 112 =
30. 30.13 × 11 =
31. 31.97 × 91 =
32. 32.101 × 96 =
33. 33.9 × 6 =
34. 34.1022 × 992 =
35. 35.12 × 14 =
36. 36.989 × 960 =
37. 37.105 × 109 =
38. 38.97 × 98 =
39. 39.101 × 96 =
40. 40.99 × 88 =

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