Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 517 · 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. 1.93 × 95 =
2. 2.85 × 89 =
3. 3.86 × 85 =
4. 4.978 × 997 =
5. 5.14 × 8 =
6. 6.8 × 9 =
7. 7.13 × 9 =
8. 8.101 × 115 =
9. 9.96 × 97 =
10. 10.12 × 11 =
11. 11.99 × 93 =
12. 12.89 × 94 =
13. 13.1019 × 1011 =
14. 14.87 × 90 =
15. 15.86 × 90 =
16. 16.102 × 108 =
17. 17.90 × 99 =
18. 18.11 × 7 =
19. 19.1011 × 1002 =
20. 20.96 × 87 =
21. 21.978 × 988 =
22. 22.115 × 98 =
23. 23.1012 × 1019 =
24. 24.999 × 995 =
25. 25.966 × 989 =
26. 26.9 × 7 =
27. 27.87 × 93 =
28. 28.102 × 111 =
29. 29.8 × 9 =
30. 30.7 × 7 =
31. 31.90 × 90 =
32. 32.12 × 11 =
33. 33.13 × 12 =
34. 34.1011 × 995 =
35. 35.1001 × 995 =
36. 36.13 × 9 =
37. 37.103 × 104 =
38. 38.13 × 11 =
39. 39.96 × 89 =
40. 40.97 × 99 =

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