Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 286 · 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. 1.87 × 94 =
2. 2.13 × 8 =
3. 3.106 × 89 =
4. 4.6 × 8 =
5. 5.11 × 9 =
6. 6.9 × 8 =
7. 7.13 × 11 =
8. 8.11 × 6 =
9. 9.111 × 97 =
10. 10.91 × 95 =
11. 11.1036 × 1004 =
12. 12.99 × 86 =
13. 13.86 × 94 =
14. 14.98 × 90 =
15. 15.6 × 8 =
16. 16.92 × 98 =
17. 17.14 × 12 =
18. 18.14 × 13 =
19. 19.92 × 86 =
20. 20.13 × 12 =
21. 21.106 × 88 =
22. 22.102 × 103 =
23. 23.9 × 8 =
24. 24.997 × 985 =
25. 25.6 × 7 =
26. 26.92 × 89 =
27. 27.7 × 7 =
28. 28.102 × 103 =
29. 29.1027 × 1037 =
30. 30.98 × 85 =
31. 31.107 × 92 =
32. 32.108 × 96 =
33. 33.12 × 13 =
34. 34.110 × 85 =
35. 35.1023 × 969 =
36. 36.98 × 98 =
37. 37.86 × 97 =
38. 38.8 × 8 =
39. 39.103 × 113 =
40. 40.105 × 87 =

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