Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 205 · 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. 1.1012 × 1004 =
2. 2.97 × 97 =
3. 3.7 × 9 =
4. 4.11 × 9 =
5. 5.89 × 93 =
6. 6.13 × 9 =
7. 7.12 × 11 =
8. 8.8 × 6 =
9. 9.1018 × 1012 =
10. 10.85 × 90 =
11. 11.109 × 107 =
12. 12.85 × 87 =
13. 13.12 × 11 =
14. 14.93 × 91 =
15. 15.114 × 109 =
16. 16.1010 × 965 =
17. 17.969 × 970 =
18. 18.110 × 99 =
19. 19.89 × 93 =
20. 20.13 × 11 =
21. 21.104 × 98 =
22. 22.106 × 92 =
23. 23.1014 × 976 =
24. 24.94 × 88 =
25. 25.8 × 9 =
26. 26.11 × 13 =
27. 27.6 × 9 =
28. 28.93 × 87 =
29. 29.92 × 92 =
30. 30.6 × 6 =
31. 31.96 × 93 =
32. 32.1005 × 1002 =
33. 33.9 × 7 =
34. 34.12 × 8 =
35. 35.90 × 94 =
36. 36.960 × 972 =
37. 37.112 × 112 =
38. 38.87 × 99 =
39. 39.113 × 99 =
40. 40.99 × 92 =

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