Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 189 · 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. 1.114 × 91 =
2. 2.1007 × 1037 =
3. 3.109 × 92 =
4. 4.107 × 97 =
5. 5.112 × 92 =
6. 6.110 × 92 =
7. 7.93 × 95 =
8. 8.13 × 8 =
9. 9.103 × 110 =
10. 10.1029 × 1010 =
11. 11.99 × 98 =
12. 12.106 × 106 =
13. 13.997 × 963 =
14. 14.12 × 13 =
15. 15.11 × 11 =
16. 16.13 × 9 =
17. 17.97 × 92 =
18. 18.102 × 110 =
19. 19.1011 × 1019 =
20. 20.14 × 9 =
21. 21.1021 × 981 =
22. 22.101 × 88 =
23. 23.85 × 90 =
24. 24.6 × 6 =
25. 25.90 × 98 =
26. 26.115 × 103 =
27. 27.102 × 102 =
28. 28.1001 × 969 =
29. 29.88 × 98 =
30. 30.1020 × 1019 =
31. 31.12 × 6 =
32. 32.107 × 87 =
33. 33.94 × 89 =
34. 34.94 × 93 =
35. 35.109 × 109 =
36. 36.11 × 6 =
37. 37.86 × 94 =
38. 38.99 × 91 =
39. 39.13 × 13 =
40. 40.96 × 85 =

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