Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 43 · 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. 1.87 × 92 =
2. 2.107 × 111 =
3. 3.108 × 103 =
4. 4.973 × 979 =
5. 5.86 × 92 =
6. 6.14 × 11 =
7. 7.1006 × 1025 =
8. 8.1024 × 966 =
9. 9.1039 × 1039 =
10. 10.90 × 94 =
11. 11.7 × 9 =
12. 12.110 × 97 =
13. 13.96 × 88 =
14. 14.1007 × 1012 =
15. 15.9 × 6 =
16. 16.85 × 91 =
17. 17.1031 × 1001 =
18. 18.7 × 9 =
19. 19.1040 × 1020 =
20. 20.1029 × 1009 =
21. 21.96 × 92 =
22. 22.87 × 96 =
23. 23.8 × 9 =
24. 24.106 × 92 =
25. 25.86 × 92 =
26. 26.86 × 93 =
27. 27.13 × 9 =
28. 28.87 × 85 =
29. 29.6 × 7 =
30. 30.1034 × 1032 =
31. 31.1036 × 1036 =
32. 32.990 × 982 =
33. 33.91 × 85 =
34. 34.93 × 91 =
35. 35.8 × 8 =
36. 36.1018 × 990 =
37. 37.93 × 92 =
38. 38.89 × 97 =
39. 39.102 × 99 =
40. 40.110 × 111 =

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