Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 234 · 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. 1.90 × 99 =
2. 2.988 × 999 =
3. 3.90 × 92 =
4. 4.110 × 108 =
5. 5.992 × 991 =
6. 6.993 × 992 =
7. 7.102 × 105 =
8. 8.1005 × 970 =
9. 9.6 × 8 =
10. 10.105 × 109 =
11. 11.12 × 14 =
12. 12.104 × 88 =
13. 13.89 × 99 =
14. 14.91 × 86 =
15. 15.98 × 85 =
16. 16.114 × 85 =
17. 17.6 × 9 =
18. 18.112 × 115 =
19. 19.1039 × 1038 =
20. 20.990 × 977 =
21. 21.97 × 93 =
22. 22.108 × 113 =
23. 23.978 × 960 =
24. 24.971 × 979 =
25. 25.109 × 114 =
26. 26.8 × 8 =
27. 27.977 × 984 =
28. 28.11 × 12 =
29. 29.14 × 11 =
30. 30.13 × 11 =
31. 31.7 × 7 =
32. 32.98 × 92 =
33. 33.7 × 6 =
34. 34.91 × 94 =
35. 35.981 × 970 =
36. 36.93 × 99 =
37. 37.103 × 99 =
38. 38.111 × 88 =
39. 39.113 × 105 =
40. 40.107 × 95 =

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