Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 521 · 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. 1.92 × 90 =
2. 2.962 × 980 =
3. 3.114 × 105 =
4. 4.11 × 8 =
5. 5.8 × 9 =
6. 6.108 × 113 =
7. 7.8 × 9 =
8. 8.103 × 104 =
9. 9.998 × 971 =
10. 10.6 × 9 =
11. 11.112 × 113 =
12. 12.1037 × 975 =
13. 13.113 × 92 =
14. 14.14 × 9 =
15. 15.98 × 90 =
16. 16.8 × 8 =
17. 17.978 × 976 =
18. 18.962 × 984 =
19. 19.85 × 87 =
20. 20.108 × 111 =
21. 21.90 × 92 =
22. 22.7 × 9 =
23. 23.989 × 974 =
24. 24.13 × 13 =
25. 25.964 × 964 =
26. 26.980 × 974 =
27. 27.97 × 88 =
28. 28.1010 × 1013 =
29. 29.97 × 89 =
30. 30.110 × 113 =
31. 31.87 × 93 =
32. 32.995 × 991 =
33. 33.104 × 90 =
34. 34.111 × 86 =
35. 35.96 × 94 =
36. 36.1034 × 1027 =
37. 37.104 × 99 =
38. 38.9 × 7 =
39. 39.96 × 91 =
40. 40.13 × 8 =

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