Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 223 · 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. 1.14 × 7 =
2. 2.88 × 89 =
3. 3.110 × 110 =
4. 4.1027 × 992 =
5. 5.13 × 14 =
6. 6.111 × 107 =
7. 7.110 × 96 =
8. 8.11 × 11 =
9. 9.112 × 96 =
10. 10.12 × 13 =
11. 11.9 × 9 =
12. 12.98 × 94 =
13. 13.88 × 89 =
14. 14.93 × 85 =
15. 15.93 × 95 =
16. 16.108 × 102 =
17. 17.108 × 99 =
18. 18.97 × 90 =
19. 19.115 × 90 =
20. 20.11 × 7 =
21. 21.108 × 102 =
22. 22.85 × 85 =
23. 23.109 × 104 =
24. 24.965 × 971 =
25. 25.1010 × 1009 =
26. 26.1032 × 993 =
27. 27.994 × 987 =
28. 28.11 × 12 =
29. 29.110 × 110 =
30. 30.9 × 6 =
31. 31.8 × 7 =
32. 32.92 × 87 =
33. 33.92 × 90 =
34. 34.103 × 109 =
35. 35.12 × 8 =
36. 36.114 × 89 =
37. 37.8 × 6 =
38. 38.1038 × 988 =
39. 39.99 × 86 =
40. 40.94 × 90 =

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