Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 16 · 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 × 85 =
2. 2.1026 × 970 =
3. 3.12 × 11 =
4. 4.966 × 961 =
5. 5.111 × 104 =
6. 6.104 × 105 =
7. 7.1017 × 997 =
8. 8.98 × 98 =
9. 9.11 × 9 =
10. 10.115 × 109 =
11. 11.110 × 115 =
12. 12.97 × 95 =
13. 13.1008 × 974 =
14. 14.107 × 89 =
15. 15.96 × 98 =
16. 16.86 × 99 =
17. 17.98 × 94 =
18. 18.87 × 91 =
19. 19.101 × 85 =
20. 20.984 × 976 =
21. 21.6 × 8 =
22. 22.1027 × 1021 =
23. 23.105 × 103 =
24. 24.102 × 115 =
25. 25.90 × 98 =
26. 26.8 × 9 =
27. 27.13 × 11 =
28. 28.91 × 94 =
29. 29.97 × 92 =
30. 30.995 × 965 =
31. 31.7 × 6 =
32. 32.12 × 12 =
33. 33.104 × 92 =
34. 34.1007 × 972 =
35. 35.95 × 89 =
36. 36.93 × 98 =
37. 37.97 × 86 =
38. 38.1006 × 1039 =
39. 39.12 × 12 =
40. 40.11 × 9 =

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