Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 529 · 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. 2.13 × 11 =
3. 3.7 × 9 =
4. 4.12 × 12 =
5. 5.104 × 102 =
6. 6.11 × 14 =
7. 7.92 × 97 =
8. 8.14 × 9 =
9. 9.1009 × 997 =
10. 10.12 × 9 =
11. 11.12 × 8 =
12. 12.9 × 7 =
13. 13.12 × 9 =
14. 14.85 × 86 =
15. 15.104 × 102 =
16. 16.1010 × 992 =
17. 17.86 × 92 =
18. 18.88 × 85 =
19. 19.13 × 11 =
20. 20.108 × 111 =
21. 21.105 × 115 =
22. 22.96 × 99 =
23. 23.113 × 103 =
24. 24.87 × 87 =
25. 25.111 × 92 =
26. 26.111 × 104 =
27. 27.14 × 6 =
28. 28.107 × 91 =
29. 29.111 × 106 =
30. 30.86 × 89 =
31. 31.967 × 998 =
32. 32.11 × 9 =
33. 33.99 × 90 =
34. 34.104 × 95 =
35. 35.1006 × 973 =
36. 36.91 × 93 =
37. 37.11 × 12 =
38. 38.1026 × 1036 =
39. 39.9 × 6 =
40. 40.7 × 9 =

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