Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 715 · 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. 1.1012 × 966 =
2. 2.1030 × 1004 =
3. 3.6 × 6 =
4. 4.988 × 986 =
5. 5.962 × 982 =
6. 6.13 × 14 =
7. 7.98 × 92 =
8. 8.14 × 11 =
9. 9.11 × 9 =
10. 10.85 × 99 =
11. 11.12 × 11 =
12. 12.6 × 6 =
13. 13.6 × 9 =
14. 14.99 × 87 =
15. 15.108 × 106 =
16. 16.89 × 98 =
17. 17.93 × 85 =
18. 18.115 × 97 =
19. 19.86 × 85 =
20. 20.1011 × 960 =
21. 21.85 × 93 =
22. 22.87 × 97 =
23. 23.12 × 12 =
24. 24.90 × 85 =
25. 25.104 × 91 =
26. 26.90 × 97 =
27. 27.6 × 8 =
28. 28.104 × 103 =
29. 29.115 × 112 =
30. 30.14 × 12 =
31. 31.13 × 11 =
32. 32.97 × 94 =
33. 33.9 × 8 =
34. 34.971 × 974 =
35. 35.89 × 87 =
36. 36.101 × 90 =
37. 37.979 × 998 =
38. 38.114 × 89 =
39. 39.103 × 99 =
40. 40.983 × 989 =

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