Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 422 · 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. 1.962 × 998 =
2. 2.13 × 6 =
3. 3.14 × 8 =
4. 4.7 × 8 =
5. 5.1009 × 1021 =
6. 6.984 × 995 =
7. 7.108 × 115 =
8. 8.14 × 11 =
9. 9.105 × 115 =
10. 10.90 × 95 =
11. 11.90 × 96 =
12. 12.9 × 7 =
13. 13.105 × 98 =
14. 14.11 × 7 =
15. 15.967 × 985 =
16. 16.973 × 965 =
17. 17.87 × 99 =
18. 18.112 × 108 =
19. 19.111 × 108 =
20. 20.11 × 9 =
21. 21.975 × 974 =
22. 22.9 × 7 =
23. 23.1015 × 1008 =
24. 24.109 × 97 =
25. 25.101 × 108 =
26. 26.103 × 113 =
27. 27.1034 × 988 =
28. 28.961 × 960 =
29. 29.6 × 8 =
30. 30.1006 × 1017 =
31. 31.6 × 6 =
32. 32.90 × 85 =
33. 33.6 × 8 =
34. 34.995 × 972 =
35. 35.1013 × 985 =
36. 36.87 × 94 =
37. 37.114 × 91 =
38. 38.105 × 85 =
39. 39.12 × 11 =
40. 40.95 × 92 =

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