Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 421 · 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. 1.14 × 12 =
2. 2.104 × 105 =
3. 3.1016 × 1012 =
4. 4.994 × 983 =
5. 5.14 × 9 =
6. 6.97 × 95 =
7. 7.109 × 99 =
8. 8.14 × 12 =
9. 9.1039 × 1011 =
10. 10.994 × 989 =
11. 11.112 × 109 =
12. 12.12 × 9 =
13. 13.6 × 7 =
14. 14.108 × 113 =
15. 15.1031 × 1006 =
16. 16.8 × 7 =
17. 17.13 × 11 =
18. 18.107 × 106 =
19. 19.978 × 968 =
20. 20.9 × 6 =
21. 21.9 × 8 =
22. 22.991 × 980 =
23. 23.1016 × 1003 =
24. 24.1003 × 1037 =
25. 25.88 × 93 =
26. 26.97 × 85 =
27. 27.12 × 8 =
28. 28.13 × 11 =
29. 29.14 × 8 =
30. 30.109 × 98 =
31. 31.90 × 97 =
32. 32.89 × 88 =
33. 33.90 × 98 =
34. 34.92 × 93 =
35. 35.8 × 8 =
36. 36.12 × 14 =
37. 37.113 × 88 =
38. 38.98 × 91 =
39. 39.975 × 962 =
40. 40.93 × 89 =

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