Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 579 · 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. 1.114 × 107 =
2. 2.1007 × 1038 =
3. 3.8 × 9 =
4. 4.92 × 89 =
5. 5.13 × 9 =
6. 6.115 × 102 =
7. 7.12 × 13 =
8. 8.1014 × 1007 =
9. 9.115 × 105 =
10. 10.109 × 85 =
11. 11.104 × 112 =
12. 12.9 × 9 =
13. 13.8 × 6 =
14. 14.11 × 8 =
15. 15.113 × 91 =
16. 16.103 × 89 =
17. 17.110 × 104 =
18. 18.6 × 7 =
19. 19.86 × 97 =
20. 20.13 × 11 =
21. 21.95 × 94 =
22. 22.996 × 966 =
23. 23.963 × 998 =
24. 24.12 × 9 =
25. 25.995 × 970 =
26. 26.92 × 85 =
27. 27.107 × 101 =
28. 28.90 × 97 =
29. 29.976 × 986 =
30. 30.107 × 107 =
31. 31.109 × 102 =
32. 32.91 × 90 =
33. 33.101 × 85 =
34. 34.92 × 97 =
35. 35.1017 × 976 =
36. 36.99 × 93 =
37. 37.107 × 93 =
38. 38.11 × 14 =
39. 39.90 × 93 =
40. 40.103 × 90 =

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