Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 767 · 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. 1.7 × 7 =
2. 2.92 × 92 =
3. 3.11 × 9 =
4. 4.86 × 98 =
5. 5.9 × 8 =
6. 6.13 × 9 =
7. 7.105 × 111 =
8. 8.12 × 6 =
9. 9.6 × 9 =
10. 10.92 × 91 =
11. 11.103 × 105 =
12. 12.968 × 972 =
13. 13.12 × 13 =
14. 14.86 × 96 =
15. 15.104 × 96 =
16. 16.7 × 8 =
17. 17.107 × 109 =
18. 18.97 × 99 =
19. 19.93 × 96 =
20. 20.107 × 108 =
21. 21.1018 × 976 =
22. 22.102 × 88 =
23. 23.1008 × 1026 =
24. 24.111 × 99 =
25. 25.973 × 997 =
26. 26.7 × 6 =
27. 27.88 × 96 =
28. 28.1013 × 1005 =
29. 29.14 × 11 =
30. 30.105 × 113 =
31. 31.103 × 109 =
32. 32.7 × 9 =
33. 33.13 × 11 =
34. 34.11 × 8 =
35. 35.101 × 114 =
36. 36.104 × 97 =
37. 37.115 × 88 =
38. 38.89 × 89 =
39. 39.11 × 11 =
40. 40.91 × 94 =

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