Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 744 · 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. 1.109 × 113 =
2. 2.1004 × 1008 =
3. 3.87 × 93 =
4. 4.992 × 990 =
5. 5.8 × 9 =
6. 6.115 × 93 =
7. 7.14 × 8 =
8. 8.105 × 105 =
9. 9.8 × 9 =
10. 10.112 × 97 =
11. 11.94 × 93 =
12. 12.1004 × 1036 =
13. 13.85 × 96 =
14. 14.115 × 114 =
15. 15.90 × 85 =
16. 16.8 × 7 =
17. 17.963 × 978 =
18. 18.13 × 11 =
19. 19.6 × 8 =
20. 20.12 × 7 =
21. 21.12 × 14 =
22. 22.101 × 108 =
23. 23.110 × 86 =
24. 24.94 × 97 =
25. 25.14 × 11 =
26. 26.998 × 987 =
27. 27.115 × 95 =
28. 28.1030 × 1029 =
29. 29.109 × 99 =
30. 30.95 × 98 =
31. 31.108 × 99 =
32. 32.1018 × 1010 =
33. 33.93 × 90 =
34. 34.93 × 99 =
35. 35.1016 × 980 =
36. 36.103 × 95 =
37. 37.112 × 101 =
38. 38.110 × 105 =
39. 39.7 × 8 =
40. 40.1004 × 1039 =

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