Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 141 · 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. 1.87 × 92 =
2. 2.1017 × 1013 =
3. 3.96 × 95 =
4. 4.103 × 105 =
5. 5.1003 × 962 =
6. 6.103 × 113 =
7. 7.107 × 95 =
8. 8.113 × 103 =
9. 9.991 × 970 =
10. 10.87 × 87 =
11. 11.14 × 11 =
12. 12.109 × 87 =
13. 13.106 × 113 =
14. 14.13 × 13 =
15. 15.1010 × 1009 =
16. 16.98 × 91 =
17. 17.89 × 97 =
18. 18.87 × 87 =
19. 19.104 × 103 =
20. 20.112 × 98 =
21. 21.88 × 95 =
22. 22.86 × 96 =
23. 23.13 × 6 =
24. 24.981 × 968 =
25. 25.111 × 103 =
26. 26.13 × 14 =
27. 27.102 × 104 =
28. 28.108 × 90 =
29. 29.98 × 87 =
30. 30.12 × 12 =
31. 31.14 × 14 =
32. 32.92 × 91 =
33. 33.14 × 9 =
34. 34.91 × 99 =
35. 35.11 × 13 =
36. 36.966 × 978 =
37. 37.1034 × 1027 =
38. 38.111 × 109 =
39. 39.103 × 104 =
40. 40.95 × 98 =

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