Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 270 · 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. 1.89 × 85 =
2. 2.1004 × 1024 =
3. 3.98 × 91 =
4. 4.114 × 85 =
5. 5.106 × 102 =
6. 6.1024 × 1015 =
7. 7.1025 × 980 =
8. 8.97 × 93 =
9. 9.1028 × 990 =
10. 10.87 × 95 =
11. 11.12 × 7 =
12. 12.1037 × 1002 =
13. 13.90 × 92 =
14. 14.964 × 974 =
15. 15.993 × 971 =
16. 16.1014 × 960 =
17. 17.90 × 91 =
18. 18.106 × 96 =
19. 19.111 × 103 =
20. 20.8 × 6 =
21. 21.13 × 14 =
22. 22.112 × 87 =
23. 23.9 × 9 =
24. 24.993 × 986 =
25. 25.108 × 104 =
26. 26.95 × 94 =
27. 27.8 × 9 =
28. 28.104 × 90 =
29. 29.1009 × 1008 =
30. 30.91 × 91 =
31. 31.14 × 12 =
32. 32.12 × 11 =
33. 33.97 × 87 =
34. 34.86 × 85 =
35. 35.1007 × 967 =
36. 36.90 × 98 =
37. 37.1015 × 1021 =
38. 38.91 × 92 =
39. 39.960 × 963 =
40. 40.106 × 103 =

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