Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 518 · 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. 1.1016 × 985 =
2. 2.1002 × 1031 =
3. 3.1039 × 991 =
4. 4.92 × 87 =
5. 5.8 × 8 =
6. 6.97 × 98 =
7. 7.7 × 9 =
8. 8.12 × 12 =
9. 9.92 × 95 =
10. 10.105 × 106 =
11. 11.11 × 12 =
12. 12.105 × 101 =
13. 13.6 × 8 =
14. 14.108 × 107 =
15. 15.1006 × 999 =
16. 16.93 × 99 =
17. 17.93 × 94 =
18. 18.12 × 11 =
19. 19.12 × 12 =
20. 20.96 × 92 =
21. 21.102 × 86 =
22. 22.8 × 9 =
23. 23.86 × 87 =
24. 24.969 × 993 =
25. 25.11 × 11 =
26. 26.87 × 92 =
27. 27.11 × 14 =
28. 28.1015 × 1001 =
29. 29.86 × 89 =
30. 30.88 × 92 =
31. 31.89 × 96 =
32. 32.8 × 8 =
33. 33.14 × 13 =
34. 34.110 × 101 =
35. 35.1010 × 1003 =
36. 36.1026 × 1006 =
37. 37.113 × 103 =
38. 38.102 × 106 =
39. 39.13 × 7 =
40. 40.6 × 8 =

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