Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 609 · 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. 1.107 × 99 =
2. 2.114 × 89 =
3. 3.106 × 98 =
4. 4.86 × 92 =
5. 5.13 × 6 =
6. 6.101 × 96 =
7. 7.102 × 94 =
8. 8.90 × 94 =
9. 9.109 × 89 =
10. 10.104 × 91 =
11. 11.111 × 94 =
12. 12.102 × 104 =
13. 13.106 × 112 =
14. 14.97 × 88 =
15. 15.14 × 11 =
16. 16.104 × 111 =
17. 17.12 × 6 =
18. 18.112 × 97 =
19. 19.6 × 9 =
20. 20.107 × 88 =
21. 21.8 × 6 =
22. 22.105 × 111 =
23. 23.93 × 85 =
24. 24.112 × 103 =
25. 25.11 × 6 =
26. 26.7 × 7 =
27. 27.12 × 12 =
28. 28.88 × 91 =
29. 29.13 × 9 =
30. 30.1034 × 1009 =
31. 31.109 × 93 =
32. 32.6 × 9 =
33. 33.12 × 11 =
34. 34.93 × 91 =
35. 35.965 × 962 =
36. 36.1026 × 987 =
37. 37.91 × 89 =
38. 38.9 × 8 =
39. 39.9 × 7 =
40. 40.988 × 962 =

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