Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 477 · 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. 1.106 × 92 =
2. 2.1022 × 1011 =
3. 3.11 × 12 =
4. 4.103 × 97 =
5. 5.14 × 14 =
6. 6.1029 × 1036 =
7. 7.113 × 105 =
8. 8.8 × 7 =
9. 9.96 × 91 =
10. 10.6 × 6 =
11. 11.1036 × 965 =
12. 12.1028 × 997 =
13. 13.105 × 85 =
14. 14.86 × 86 =
15. 15.14 × 6 =
16. 16.107 × 115 =
17. 17.86 × 96 =
18. 18.108 × 104 =
19. 19.11 × 6 =
20. 20.1039 × 1019 =
21. 21.111 × 91 =
22. 22.1030 × 1001 =
23. 23.109 × 95 =
24. 24.109 × 111 =
25. 25.9 × 7 =
26. 26.1002 × 995 =
27. 27.11 × 11 =
28. 28.11 × 8 =
29. 29.105 × 97 =
30. 30.7 × 7 =
31. 31.106 × 104 =
32. 32.9 × 6 =
33. 33.12 × 14 =
34. 34.112 × 111 =
35. 35.104 × 105 =
36. 36.103 × 92 =
37. 37.8 × 6 =
38. 38.111 × 109 =
39. 39.91 × 86 =
40. 40.99 × 86 =

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