Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 329 · 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. 1.92 × 89 =
2. 2.1021 × 983 =
3. 3.1035 × 997 =
4. 4.96 × 99 =
5. 5.1038 × 991 =
6. 6.12 × 8 =
7. 7.90 × 97 =
8. 8.97 × 87 =
9. 9.101 × 86 =
10. 10.91 × 90 =
11. 11.95 × 85 =
12. 12.1006 × 991 =
13. 13.108 × 88 =
14. 14.91 × 99 =
15. 15.986 × 984 =
16. 16.107 × 115 =
17. 17.8 × 7 =
18. 18.104 × 89 =
19. 19.11 × 14 =
20. 20.101 × 108 =
21. 21.96 × 87 =
22. 22.98 × 96 =
23. 23.6 × 7 =
24. 24.104 × 98 =
25. 25.103 × 103 =
26. 26.99 × 99 =
27. 27.113 × 95 =
28. 28.112 × 104 =
29. 29.8 × 7 =
30. 30.107 × 110 =
31. 31.9 × 8 =
32. 32.11 × 9 =
33. 33.1003 × 997 =
34. 34.11 × 8 =
35. 35.92 × 89 =
36. 36.11 × 11 =
37. 37.99 × 97 =
38. 38.114 × 110 =
39. 39.973 × 999 =
40. 40.98 × 88 =

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