Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 274 · 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. 1.9 × 9 =
2. 2.104 × 90 =
3. 3.85 × 91 =
4. 4.102 × 112 =
5. 5.114 × 99 =
6. 6.114 × 92 =
7. 7.93 × 99 =
8. 8.91 × 92 =
9. 9.111 × 90 =
10. 10.9 × 9 =
11. 11.87 × 94 =
12. 12.7 × 8 =
13. 13.11 × 14 =
14. 14.8 × 9 =
15. 15.103 × 90 =
16. 16.7 × 9 =
17. 17.112 × 111 =
18. 18.975 × 996 =
19. 19.1034 × 966 =
20. 20.93 × 95 =
21. 21.7 × 8 =
22. 22.98 × 93 =
23. 23.106 × 98 =
24. 24.13 × 8 =
25. 25.9 × 6 =
26. 26.1009 × 991 =
27. 27.14 × 13 =
28. 28.102 × 114 =
29. 29.106 × 109 =
30. 30.106 × 104 =
31. 31.102 × 111 =
32. 32.91 × 88 =
33. 33.113 × 114 =
34. 34.1032 × 1039 =
35. 35.99 × 97 =
36. 36.107 × 104 =
37. 37.98 × 95 =
38. 38.102 × 106 =
39. 39.103 × 85 =
40. 40.1018 × 994 =

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