Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 356 · 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. 1.9 × 9 =
2. 2.1006 × 982 =
3. 3.94 × 90 =
4. 4.91 × 88 =
5. 5.85 × 98 =
6. 6.9 × 7 =
7. 7.104 × 108 =
8. 8.85 × 89 =
9. 9.104 × 93 =
10. 10.101 × 107 =
11. 11.96 × 93 =
12. 12.101 × 101 =
13. 13.14 × 14 =
14. 14.1002 × 1004 =
15. 15.992 × 966 =
16. 16.114 × 102 =
17. 17.11 × 12 =
18. 18.92 × 96 =
19. 19.8 × 8 =
20. 20.105 × 92 =
21. 21.8 × 9 =
22. 22.13 × 11 =
23. 23.1024 × 1006 =
24. 24.1009 × 970 =
25. 25.99 × 94 =
26. 26.99 × 96 =
27. 27.109 × 89 =
28. 28.1015 × 1013 =
29. 29.106 × 91 =
30. 30.87 × 99 =
31. 31.108 × 87 =
32. 32.12 × 8 =
33. 33.11 × 11 =
34. 34.91 × 94 =
35. 35.9 × 7 =
36. 36.14 × 6 =
37. 37.95 × 89 =
38. 38.12 × 12 =
39. 39.988 × 970 =
40. 40.7 × 6 =

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