Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 391 · 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. 1.14 × 7 =
2. 2.6 × 7 =
3. 3.105 × 103 =
4. 4.90 × 98 =
5. 5.11 × 8 =
6. 6.101 × 92 =
7. 7.11 × 11 =
8. 8.109 × 90 =
9. 9.85 × 86 =
10. 10.8 × 7 =
11. 11.96 × 99 =
12. 12.94 × 91 =
13. 13.6 × 9 =
14. 14.12 × 11 =
15. 15.104 × 114 =
16. 16.11 × 11 =
17. 17.97 × 94 =
18. 18.6 × 9 =
19. 19.12 × 12 =
20. 20.9 × 6 =
21. 21.6 × 9 =
22. 22.12 × 14 =
23. 23.111 × 108 =
24. 24.102 × 109 =
25. 25.106 × 92 =
26. 26.11 × 11 =
27. 27.98 × 96 =
28. 28.95 × 87 =
29. 29.1021 × 997 =
30. 30.7 × 8 =
31. 31.106 × 93 =
32. 32.13 × 11 =
33. 33.1024 × 1017 =
34. 34.1029 × 1002 =
35. 35.115 × 96 =
36. 36.91 × 86 =
37. 37.979 × 991 =
38. 38.13 × 14 =
39. 39.6 × 8 =
40. 40.14 × 13 =

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