Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 637 · 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. 1.1013 × 1011 =
2. 2.975 × 986 =
3. 3.86 × 91 =
4. 4.90 × 85 =
5. 5.6 × 7 =
6. 6.104 × 94 =
7. 7.102 × 114 =
8. 8.94 × 97 =
9. 9.977 × 994 =
10. 10.13 × 11 =
11. 11.14 × 13 =
12. 12.13 × 9 =
13. 13.102 × 102 =
14. 14.6 × 7 =
15. 15.114 × 112 =
16. 16.1007 × 1007 =
17. 17.12 × 7 =
18. 18.99 × 97 =
19. 19.6 × 7 =
20. 20.12 × 13 =
21. 21.1035 × 1023 =
22. 22.108 × 110 =
23. 23.97 × 97 =
24. 24.1017 × 1005 =
25. 25.1001 × 1034 =
26. 26.98 × 99 =
27. 27.1027 × 1005 =
28. 28.95 × 96 =
29. 29.108 × 90 =
30. 30.87 × 96 =
31. 31.95 × 99 =
32. 32.8 × 9 =
33. 33.97 × 96 =
34. 34.92 × 85 =
35. 35.111 × 108 =
36. 36.6 × 9 =
37. 37.1028 × 1024 =
38. 38.9 × 8 =
39. 39.110 × 96 =
40. 40.11 × 13 =

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