Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 681 · 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. 1.99 × 94 =
2. 2.85 × 92 =
3. 3.991 × 991 =
4. 4.977 × 989 =
5. 5.11 × 14 =
6. 6.971 × 983 =
7. 7.93 × 86 =
8. 8.977 × 972 =
9. 9.980 × 994 =
10. 10.107 × 92 =
11. 11.11 × 14 =
12. 12.972 × 960 =
13. 13.12 × 6 =
14. 14.88 × 92 =
15. 15.1030 × 984 =
16. 16.95 × 89 =
17. 17.1020 × 1008 =
18. 18.13 × 9 =
19. 19.103 × 91 =
20. 20.110 × 93 =
21. 21.115 × 110 =
22. 22.11 × 11 =
23. 23.93 × 91 =
24. 24.7 × 9 =
25. 25.90 × 92 =
26. 26.96 × 99 =
27. 27.87 × 90 =
28. 28.9 × 8 =
29. 29.1020 × 1011 =
30. 30.95 × 97 =
31. 31.11 × 11 =
32. 32.94 × 97 =
33. 33.994 × 966 =
34. 34.92 × 93 =
35. 35.8 × 8 =
36. 36.12 × 12 =
37. 37.1023 × 1009 =
38. 38.996 × 967 =
39. 39.95 × 97 =
40. 40.9 × 7 =

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