Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 122 · 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. 1.86 × 93 =
2. 2.9 × 9 =
3. 3.93 × 93 =
4. 4.1030 × 1018 =
5. 5.992 × 973 =
6. 6.106 × 104 =
7. 7.14 × 12 =
8. 8.115 × 115 =
9. 9.12 × 13 =
10. 10.91 × 86 =
11. 11.6 × 7 =
12. 12.6 × 9 =
13. 13.11 × 9 =
14. 14.94 × 95 =
15. 15.9 × 9 =
16. 16.7 × 9 =
17. 17.11 × 12 =
18. 18.102 × 89 =
19. 19.11 × 14 =
20. 20.102 × 111 =
21. 21.112 × 113 =
22. 22.114 × 96 =
23. 23.1015 × 998 =
24. 24.1020 × 1034 =
25. 25.14 × 9 =
26. 26.90 × 93 =
27. 27.987 × 965 =
28. 28.7 × 6 =
29. 29.8 × 8 =
30. 30.97 × 89 =
31. 31.102 × 105 =
32. 32.105 × 90 =
33. 33.97 × 97 =
34. 34.85 × 96 =
35. 35.1038 × 1029 =
36. 36.967 × 968 =
37. 37.103 × 112 =
38. 38.103 × 114 =
39. 39.967 × 965 =
40. 40.95 × 97 =

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