Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 665 · 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. 1.113 × 111 =
2. 2.104 × 91 =
3. 3.97 × 88 =
4. 4.1003 × 1026 =
5. 5.114 × 111 =
6. 6.109 × 90 =
7. 7.107 × 101 =
8. 8.13 × 14 =
9. 9.14 × 7 =
10. 10.14 × 13 =
11. 11.96 × 85 =
12. 12.98 × 97 =
13. 13.13 × 9 =
14. 14.9 × 8 =
15. 15.99 × 86 =
16. 16.7 × 7 =
17. 17.13 × 6 =
18. 18.96 × 93 =
19. 19.102 × 99 =
20. 20.103 × 109 =
21. 21.111 × 99 =
22. 22.98 × 89 =
23. 23.108 × 86 =
24. 24.993 × 969 =
25. 25.91 × 90 =
26. 26.111 × 114 =
27. 27.9 × 8 =
28. 28.1035 × 1023 =
29. 29.8 × 6 =
30. 30.94 × 90 =
31. 31.85 × 85 =
32. 32.108 × 114 =
33. 33.1009 × 1024 =
34. 34.110 × 109 =
35. 35.1012 × 976 =
36. 36.91 × 90 =
37. 37.1017 × 983 =
38. 38.1017 × 991 =
39. 39.13 × 14 =
40. 40.103 × 108 =

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