Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 272 · 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. 1.109 × 108 =
2. 2.969 × 984 =
3. 3.101 × 107 =
4. 4.110 × 113 =
5. 5.115 × 94 =
6. 6.90 × 87 =
7. 7.6 × 6 =
8. 8.112 × 112 =
9. 9.11 × 9 =
10. 10.110 × 101 =
11. 11.105 × 89 =
12. 12.11 × 9 =
13. 13.107 × 96 =
14. 14.94 × 96 =
15. 15.115 × 90 =
16. 16.104 × 101 =
17. 17.13 × 14 =
18. 18.111 × 99 =
19. 19.995 × 969 =
20. 20.965 × 985 =
21. 21.14 × 12 =
22. 22.93 × 87 =
23. 23.99 × 85 =
24. 24.1004 × 1029 =
25. 25.1021 × 990 =
26. 26.1014 × 1039 =
27. 27.971 × 964 =
28. 28.113 × 114 =
29. 29.11 × 11 =
30. 30.87 × 93 =
31. 31.986 × 993 =
32. 32.13 × 7 =
33. 33.1006 × 1019 =
34. 34.90 × 97 =
35. 35.14 × 11 =
36. 36.999 × 982 =
37. 37.112 × 107 =
38. 38.108 × 104 =
39. 39.1035 × 1022 =
40. 40.108 × 95 =

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