Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 729 · 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. 1.12 × 11 =
2. 2.13 × 6 =
3. 3.1035 × 981 =
4. 4.14 × 11 =
5. 5.112 × 90 =
6. 6.7 × 8 =
7. 7.89 × 98 =
8. 8.12 × 13 =
9. 9.8 × 8 =
10. 10.110 × 108 =
11. 11.110 × 87 =
12. 12.103 × 95 =
13. 13.107 × 94 =
14. 14.9 × 6 =
15. 15.12 × 11 =
16. 16.107 × 106 =
17. 17.11 × 8 =
18. 18.1012 × 1003 =
19. 19.9 × 7 =
20. 20.1037 × 984 =
21. 21.103 × 102 =
22. 22.1032 × 979 =
23. 23.1014 × 965 =
24. 24.967 × 982 =
25. 25.99 × 89 =
26. 26.11 × 9 =
27. 27.103 × 113 =
28. 28.91 × 98 =
29. 29.12 × 12 =
30. 30.1032 × 1018 =
31. 31.110 × 101 =
32. 32.96 × 98 =
33. 33.91 × 93 =
34. 34.96 × 97 =
35. 35.13 × 11 =
36. 36.115 × 104 =
37. 37.12 × 12 =
38. 38.92 × 91 =
39. 39.114 × 109 =
40. 40.104 × 99 =

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