Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 218 · 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. 1.9 × 6 =
2. 2.86 × 89 =
3. 3.12 × 6 =
4. 4.99 × 95 =
5. 5.1039 × 974 =
6. 6.1019 × 992 =
7. 7.6 × 8 =
8. 8.11 × 6 =
9. 9.96 × 92 =
10. 10.992 × 963 =
11. 11.99 × 88 =
12. 12.1029 × 991 =
13. 13.107 × 102 =
14. 14.11 × 9 =
15. 15.969 × 965 =
16. 16.6 × 9 =
17. 17.90 × 86 =
18. 18.7 × 7 =
19. 19.98 × 96 =
20. 20.13 × 7 =
21. 21.87 × 99 =
22. 22.96 × 89 =
23. 23.101 × 85 =
24. 24.1012 × 1005 =
25. 25.109 × 105 =
26. 26.979 × 965 =
27. 27.103 × 93 =
28. 28.7 × 8 =
29. 29.104 × 87 =
30. 30.995 × 962 =
31. 31.9 × 8 =
32. 32.89 × 99 =
33. 33.1002 × 1009 =
34. 34.106 × 102 =
35. 35.993 × 982 =
36. 36.112 × 103 =
37. 37.109 × 106 =
38. 38.986 × 986 =
39. 39.1002 × 1031 =
40. 40.98 × 91 =

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