Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 217 · 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. 1.9 × 6 =
2. 2.113 × 93 =
3. 3.86 × 91 =
4. 4.113 × 106 =
5. 5.112 × 87 =
6. 6.6 × 9 =
7. 7.103 × 115 =
8. 8.1011 × 1003 =
9. 9.107 × 106 =
10. 10.91 × 90 =
11. 11.115 × 110 =
12. 12.110 × 113 =
13. 13.13 × 11 =
14. 14.6 × 7 =
15. 15.106 × 91 =
16. 16.110 × 110 =
17. 17.14 × 14 =
18. 18.114 × 91 =
19. 19.106 × 107 =
20. 20.96 × 90 =
21. 21.101 × 96 =
22. 22.971 × 986 =
23. 23.6 × 8 =
24. 24.90 × 99 =
25. 25.101 × 99 =
26. 26.91 × 97 =
27. 27.11 × 6 =
28. 28.6 × 7 =
29. 29.991 × 966 =
30. 30.114 × 105 =
31. 31.90 × 88 =
32. 32.6 × 8 =
33. 33.113 × 94 =
34. 34.110 × 104 =
35. 35.976 × 985 =
36. 36.107 × 101 =
37. 37.11 × 11 =
38. 38.93 × 89 =
39. 39.972 × 990 =
40. 40.110 × 87 =

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