Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 5 · 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. 1.88 × 97 =
2. 2.8 × 9 =
3. 3.104 × 98 =
4. 4.108 × 106 =
5. 5.6 × 8 =
6. 6.89 × 86 =
7. 7.8 × 9 =
8. 8.101 × 95 =
9. 9.8 × 6 =
10. 10.89 × 97 =
11. 11.1032 × 997 =
12. 12.9 × 6 =
13. 13.113 × 107 =
14. 14.96 × 98 =
15. 15.969 × 986 =
16. 16.93 × 88 =
17. 17.1039 × 1024 =
18. 18.8 × 6 =
19. 19.106 × 114 =
20. 20.996 × 995 =
21. 21.113 × 85 =
22. 22.89 × 93 =
23. 23.107 × 89 =
24. 24.6 × 9 =
25. 25.101 × 92 =
26. 26.8 × 6 =
27. 27.104 × 115 =
28. 28.14 × 11 =
29. 29.1038 × 1028 =
30. 30.14 × 11 =
31. 31.87 × 99 =
32. 32.105 × 108 =
33. 33.111 × 97 =
34. 34.86 × 95 =
35. 35.111 × 114 =
36. 36.11 × 14 =
37. 37.99 × 89 =
38. 38.987 × 990 =
39. 39.984 × 978 =
40. 40.8 × 9 =

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