Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 694 · 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. 1.13 × 8 =
2. 2.97 × 96 =
3. 3.104 × 115 =
4. 4.99 × 85 =
5. 5.95 × 95 =
6. 6.91 × 88 =
7. 7.97 × 86 =
8. 8.11 × 7 =
9. 9.104 × 109 =
10. 10.111 × 115 =
11. 11.1032 × 1003 =
12. 12.115 × 105 =
13. 13.1009 × 1040 =
14. 14.85 × 96 =
15. 15.92 × 86 =
16. 16.12 × 11 =
17. 17.97 × 96 =
18. 18.1021 × 1002 =
19. 19.87 × 99 =
20. 20.13 × 12 =
21. 21.102 × 102 =
22. 22.11 × 13 =
23. 23.966 × 964 =
24. 24.1002 × 1012 =
25. 25.1038 × 1005 =
26. 26.106 × 108 =
27. 27.108 × 114 =
28. 28.12 × 13 =
29. 29.11 × 13 =
30. 30.113 × 114 =
31. 31.11 × 6 =
32. 32.9 × 8 =
33. 33.993 × 998 =
34. 34.110 × 105 =
35. 35.88 × 90 =
36. 36.109 × 106 =
37. 37.7 × 9 =
38. 38.105 × 89 =
39. 39.1038 × 962 =
40. 40.101 × 113 =

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