Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 762 · 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. 1.110 × 113 =
2. 2.1024 × 991 =
3. 3.13 × 13 =
4. 4.9 × 8 =
5. 5.99 × 95 =
6. 6.105 × 109 =
7. 7.13 × 8 =
8. 8.11 × 9 =
9. 9.9 × 7 =
10. 10.12 × 11 =
11. 11.9 × 6 =
12. 12.14 × 12 =
13. 13.14 × 8 =
14. 14.86 × 93 =
15. 15.106 × 101 =
16. 16.85 × 99 =
17. 17.1038 × 1037 =
18. 18.1021 × 990 =
19. 19.101 × 109 =
20. 20.7 × 9 =
21. 21.86 × 99 =
22. 22.88 × 89 =
23. 23.104 × 99 =
24. 24.89 × 85 =
25. 25.101 × 109 =
26. 26.88 × 86 =
27. 27.6 × 6 =
28. 28.11 × 13 =
29. 29.13 × 13 =
30. 30.106 × 115 =
31. 31.13 × 12 =
32. 32.11 × 6 =
33. 33.1018 × 999 =
34. 34.103 × 101 =
35. 35.970 × 986 =
36. 36.115 × 103 =
37. 37.98 × 99 =
38. 38.90 × 96 =
39. 39.88 × 92 =
40. 40.97 × 98 =

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