Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 559 · 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 × 6 =
2. 2.103 × 107 =
3. 3.11 × 12 =
4. 4.103 × 86 =
5. 5.87 × 98 =
6. 6.103 × 96 =
7. 7.9 × 9 =
8. 8.105 × 99 =
9. 9.1003 × 986 =
10. 10.11 × 11 =
11. 11.11 × 8 =
12. 12.972 × 972 =
13. 13.1004 × 979 =
14. 14.8 × 7 =
15. 15.94 × 98 =
16. 16.101 × 89 =
17. 17.1022 × 1033 =
18. 18.1007 × 1020 =
19. 19.11 × 6 =
20. 20.6 × 8 =
21. 21.8 × 6 =
22. 22.106 × 114 =
23. 23.14 × 7 =
24. 24.90 × 92 =
25. 25.94 × 99 =
26. 26.12 × 14 =
27. 27.110 × 95 =
28. 28.110 × 109 =
29. 29.101 × 104 =
30. 30.115 × 110 =
31. 31.86 × 96 =
32. 32.90 × 96 =
33. 33.13 × 11 =
34. 34.107 × 102 =
35. 35.113 × 107 =
36. 36.12 × 14 =
37. 37.13 × 7 =
38. 38.1012 × 1014 =
39. 39.995 × 991 =
40. 40.11 × 8 =

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