Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 309 · 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. 1.105 × 112 =
2. 2.14 × 12 =
3. 3.114 × 107 =
4. 4.113 × 97 =
5. 5.9 × 9 =
6. 6.11 × 13 =
7. 7.92 × 95 =
8. 8.101 × 99 =
9. 9.88 × 92 =
10. 10.999 × 988 =
11. 11.92 × 93 =
12. 12.106 × 102 =
13. 13.98 × 98 =
14. 14.114 × 112 =
15. 15.107 × 105 =
16. 16.1016 × 966 =
17. 17.104 × 98 =
18. 18.1039 × 1005 =
19. 19.9 × 7 =
20. 20.91 × 98 =
21. 21.97 × 95 =
22. 22.112 × 113 =
23. 23.96 × 96 =
24. 24.13 × 14 =
25. 25.1040 × 1002 =
26. 26.103 × 103 =
27. 27.110 × 94 =
28. 28.12 × 11 =
29. 29.6 × 9 =
30. 30.85 × 86 =
31. 31.109 × 113 =
32. 32.1009 × 968 =
33. 33.90 × 94 =
34. 34.978 × 978 =
35. 35.113 × 106 =
36. 36.9 × 8 =
37. 37.8 × 7 =
38. 38.97 × 87 =
39. 39.1013 × 1035 =
40. 40.9 × 8 =

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