Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 58 · 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. 1.8 × 7 =
2. 2.110 × 97 =
3. 3.12 × 14 =
4. 4.1014 × 1025 =
5. 5.982 × 995 =
6. 6.14 × 9 =
7. 7.12 × 13 =
8. 8.1006 × 1006 =
9. 9.92 × 94 =
10. 10.1016 × 966 =
11. 11.96 × 85 =
12. 12.12 × 12 =
13. 13.113 × 102 =
14. 14.109 × 97 =
15. 15.109 × 108 =
16. 16.110 × 110 =
17. 17.111 × 98 =
18. 18.971 × 988 =
19. 19.11 × 12 =
20. 20.14 × 11 =
21. 21.8 × 6 =
22. 22.12 × 12 =
23. 23.97 × 95 =
24. 24.981 × 960 =
25. 25.1037 × 961 =
26. 26.97 × 94 =
27. 27.1013 × 1017 =
28. 28.8 × 8 =
29. 29.975 × 972 =
30. 30.97 × 89 =
31. 31.104 × 108 =
32. 32.95 × 98 =
33. 33.6 × 7 =
34. 34.112 × 111 =
35. 35.102 × 112 =
36. 36.97 × 87 =
37. 37.11 × 11 =
38. 38.13 × 14 =
39. 39.110 × 96 =
40. 40.99 × 89 =

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