Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 65 · 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. 1.991 × 961 =
2. 2.99 × 94 =
3. 3.92 × 97 =
4. 4.7 × 9 =
5. 5.13 × 13 =
6. 6.94 × 98 =
7. 7.13 × 8 =
8. 8.1025 × 991 =
9. 9.986 × 962 =
10. 10.1024 × 1008 =
11. 11.980 × 972 =
12. 12.96 × 85 =
13. 13.110 × 98 =
14. 14.111 × 107 =
15. 15.967 × 983 =
16. 16.11 × 12 =
17. 17.13 × 12 =
18. 18.14 × 12 =
19. 19.1010 × 1039 =
20. 20.103 × 96 =
21. 21.1001 × 961 =
22. 22.113 × 99 =
23. 23.101 × 98 =
24. 24.1012 × 1022 =
25. 25.981 × 979 =
26. 26.110 × 115 =
27. 27.93 × 86 =
28. 28.14 × 8 =
29. 29.99 × 99 =
30. 30.1009 × 1038 =
31. 31.9 × 6 =
32. 32.11 × 14 =
33. 33.96 × 92 =
34. 34.106 × 95 =
35. 35.95 × 91 =
36. 36.86 × 97 =
37. 37.993 × 983 =
38. 38.1018 × 1021 =
39. 39.997 × 985 =
40. 40.977 × 971 =

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