Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 393 · 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. 1.92 × 96 =
2. 2.88 × 97 =
3. 3.13 × 11 =
4. 4.13 × 12 =
5. 5.1031 × 1027 =
6. 6.105 × 102 =
7. 7.95 × 91 =
8. 8.9 × 7 =
9. 9.14 × 11 =
10. 10.96 × 90 =
11. 11.107 × 92 =
12. 12.88 × 86 =
13. 13.993 × 986 =
14. 14.98 × 96 =
15. 15.115 × 109 =
16. 16.961 × 975 =
17. 17.963 × 986 =
18. 18.13 × 12 =
19. 19.1009 × 966 =
20. 20.86 × 92 =
21. 21.11 × 9 =
22. 22.89 × 97 =
23. 23.7 × 9 =
24. 24.12 × 13 =
25. 25.110 × 99 =
26. 26.972 × 969 =
27. 27.87 × 94 =
28. 28.1001 × 1005 =
29. 29.8 × 7 =
30. 30.96 × 96 =
31. 31.9 × 9 =
32. 32.106 × 98 =
33. 33.89 × 99 =
34. 34.1036 × 1013 =
35. 35.13 × 11 =
36. 36.1018 × 1008 =
37. 37.90 × 91 =
38. 38.979 × 963 =
39. 39.110 × 112 =
40. 40.105 × 91 =

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