Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 354 · 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. 1.99 × 96 =
2. 2.8 × 9 =
3. 3.995 × 981 =
4. 4.1031 × 1022 =
5. 5.9 × 9 =
6. 6.987 × 965 =
7. 7.1011 × 1001 =
8. 8.6 × 9 =
9. 9.11 × 11 =
10. 10.89 × 92 =
11. 11.986 × 966 =
12. 12.9 × 9 =
13. 13.12 × 14 =
14. 14.114 × 90 =
15. 15.111 × 107 =
16. 16.107 × 105 =
17. 17.90 × 89 =
18. 18.87 × 97 =
19. 19.998 × 980 =
20. 20.93 × 91 =
21. 21.1035 × 990 =
22. 22.112 × 98 =
23. 23.87 × 92 =
24. 24.970 × 969 =
25. 25.108 × 98 =
26. 26.980 × 973 =
27. 27.108 × 97 =
28. 28.88 × 93 =
29. 29.91 × 96 =
30. 30.104 × 92 =
31. 31.88 × 88 =
32. 32.1039 × 1002 =
33. 33.109 × 107 =
34. 34.104 × 107 =
35. 35.86 × 98 =
36. 36.94 × 99 =
37. 37.87 × 90 =
38. 38.1022 × 1011 =
39. 39.99 × 96 =
40. 40.13 × 12 =

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