Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 350 · 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. 1.85 × 93 =
2. 2.106 × 111 =
3. 3.14 × 6 =
4. 4.999 × 994 =
5. 5.6 × 7 =
6. 6.9 × 8 =
7. 7.990 × 966 =
8. 8.14 × 12 =
9. 9.11 × 14 =
10. 10.1004 × 1018 =
11. 11.90 × 87 =
12. 12.93 × 96 =
13. 13.94 × 94 =
14. 14.104 × 104 =
15. 15.105 × 106 =
16. 16.93 × 90 =
17. 17.7 × 7 =
18. 18.115 × 87 =
19. 19.997 × 969 =
20. 20.96 × 87 =
21. 21.94 × 88 =
22. 22.994 × 973 =
23. 23.89 × 90 =
24. 24.89 × 97 =
25. 25.102 × 87 =
26. 26.113 × 113 =
27. 27.1026 × 1030 =
28. 28.13 × 9 =
29. 29.113 × 88 =
30. 30.110 × 105 =
31. 31.6 × 9 =
32. 32.11 × 9 =
33. 33.99 × 99 =
34. 34.91 × 93 =
35. 35.99 × 88 =
36. 36.110 × 104 =
37. 37.111 × 108 =
38. 38.115 × 85 =
39. 39.89 × 86 =
40. 40.95 × 85 =

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