Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 398 · 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. 1.8 × 9 =
2. 2.7 × 6 =
3. 3.6 × 6 =
4. 4.996 × 966 =
5. 5.109 × 89 =
6. 6.13 × 9 =
7. 7.985 × 991 =
8. 8.110 × 114 =
9. 9.13 × 8 =
10. 10.96 × 92 =
11. 11.961 × 997 =
12. 12.103 × 113 =
13. 13.6 × 9 =
14. 14.91 × 97 =
15. 15.14 × 7 =
16. 16.101 × 89 =
17. 17.97 × 87 =
18. 18.11 × 6 =
19. 19.1011 × 960 =
20. 20.9 × 7 =
21. 21.13 × 12 =
22. 22.11 × 12 =
23. 23.113 × 86 =
24. 24.89 × 86 =
25. 25.106 × 97 =
26. 26.1037 × 993 =
27. 27.108 × 115 =
28. 28.12 × 12 =
29. 29.94 × 91 =
30. 30.113 × 97 =
31. 31.11 × 9 =
32. 32.973 × 987 =
33. 33.1039 × 1007 =
34. 34.85 × 89 =
35. 35.91 × 98 =
36. 36.1014 × 979 =
37. 37.1017 × 990 =
38. 38.93 × 90 =
39. 39.1001 × 1004 =
40. 40.94 × 85 =

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