Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 783 · 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. 1.9 × 6 =
2. 2.90 × 98 =
3. 3.93 × 92 =
4. 4.9 × 8 =
5. 5.114 × 106 =
6. 6.105 × 94 =
7. 7.8 × 9 =
8. 8.89 × 92 =
9. 9.114 × 91 =
10. 10.7 × 7 =
11. 11.110 × 90 =
12. 12.13 × 14 =
13. 13.89 × 93 =
14. 14.108 × 101 =
15. 15.108 × 112 =
16. 16.14 × 11 =
17. 17.12 × 13 =
18. 18.87 × 98 =
19. 19.988 × 966 =
20. 20.14 × 8 =
21. 21.88 × 86 =
22. 22.1020 × 1028 =
23. 23.87 × 96 =
24. 24.13 × 12 =
25. 25.13 × 13 =
26. 26.6 × 9 =
27. 27.95 × 93 =
28. 28.14 × 13 =
29. 29.960 × 980 =
30. 30.8 × 6 =
31. 31.1018 × 1012 =
32. 32.115 × 105 =
33. 33.105 × 85 =
34. 34.110 × 105 =
35. 35.12 × 13 =
36. 36.102 × 87 =
37. 37.983 × 998 =
38. 38.105 × 89 =
39. 39.99 × 85 =
40. 40.87 × 95 =

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