Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 880 · 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. 1.11 × 12 =
2. 2.7 × 8 =
3. 3.98 × 90 =
4. 4.1023 × 986 =
5. 5.85 × 92 =
6. 6.1017 × 1011 =
7. 7.9 × 6 =
8. 8.101 × 97 =
9. 9.101 × 103 =
10. 10.1015 × 1009 =
11. 11.106 × 102 =
12. 12.97 × 92 =
13. 13.13 × 13 =
14. 14.92 × 98 =
15. 15.99 × 96 =
16. 16.104 × 96 =
17. 17.109 × 115 =
18. 18.108 × 113 =
19. 19.11 × 11 =
20. 20.86 × 86 =
21. 21.96 × 96 =
22. 22.11 × 7 =
23. 23.105 × 97 =
24. 24.101 × 86 =
25. 25.111 × 110 =
26. 26.13 × 13 =
27. 27.115 × 103 =
28. 28.88 × 91 =
29. 29.89 × 87 =
30. 30.90 × 90 =
31. 31.11 × 11 =
32. 32.99 × 88 =
33. 33.102 × 90 =
34. 34.6 × 7 =
35. 35.1026 × 1025 =
36. 36.1007 × 960 =
37. 37.7 × 7 =
38. 38.986 × 995 =
39. 39.101 × 87 =
40. 40.109 × 111 =

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