Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 433 · 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. 1.115 × 111 =
2. 2.93 × 95 =
3. 3.9 × 8 =
4. 4.112 × 103 =
5. 5.13 × 12 =
6. 6.11 × 13 =
7. 7.105 × 89 =
8. 8.12 × 12 =
9. 9.111 × 90 =
10. 10.991 × 966 =
11. 11.1027 × 1018 =
12. 12.111 × 101 =
13. 13.102 × 115 =
14. 14.9 × 7 =
15. 15.971 × 990 =
16. 16.106 × 109 =
17. 17.105 × 99 =
18. 18.115 × 102 =
19. 19.99 × 86 =
20. 20.6 × 8 =
21. 21.1019 × 1023 =
22. 22.85 × 99 =
23. 23.14 × 6 =
24. 24.1012 × 974 =
25. 25.13 × 14 =
26. 26.94 × 93 =
27. 27.12 × 6 =
28. 28.7 × 9 =
29. 29.98 × 96 =
30. 30.85 × 93 =
31. 31.105 × 109 =
32. 32.14 × 9 =
33. 33.1014 × 1024 =
34. 34.108 × 104 =
35. 35.12 × 13 =
36. 36.1037 × 1002 =
37. 37.87 × 90 =
38. 38.92 × 87 =
39. 39.92 × 89 =
40. 40.103 × 104 =

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