Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 146 · 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. 1.111 × 101 =
2. 2.12 × 11 =
3. 3.1022 × 1039 =
4. 4.6 × 6 =
5. 5.102 × 102 =
6. 6.1008 × 1024 =
7. 7.975 × 977 =
8. 8.103 × 110 =
9. 9.109 × 115 =
10. 10.8 × 9 =
11. 11.967 × 963 =
12. 12.95 × 96 =
13. 13.111 × 110 =
14. 14.6 × 6 =
15. 15.11 × 6 =
16. 16.87 × 94 =
17. 17.1007 × 994 =
18. 18.108 × 106 =
19. 19.985 × 991 =
20. 20.88 × 85 =
21. 21.967 × 987 =
22. 22.14 × 14 =
23. 23.1019 × 1009 =
24. 24.9 × 7 =
25. 25.111 × 96 =
26. 26.1011 × 981 =
27. 27.99 × 94 =
28. 28.9 × 9 =
29. 29.6 × 9 =
30. 30.1025 × 965 =
31. 31.11 × 11 =
32. 32.91 × 99 =
33. 33.7 × 8 =
34. 34.115 × 113 =
35. 35.1029 × 976 =
36. 36.109 × 85 =
37. 37.89 × 98 =
38. 38.94 × 88 =
39. 39.108 × 114 =
40. 40.107 × 110 =

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