Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 373 · 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 × 13 =
2. 2.6 × 8 =
3. 3.1006 × 990 =
4. 4.109 × 91 =
5. 5.103 × 86 =
6. 6.101 × 103 =
7. 7.106 × 91 =
8. 8.14 × 6 =
9. 9.88 × 87 =
10. 10.87 × 99 =
11. 11.104 × 103 =
12. 12.7 × 8 =
13. 13.91 × 94 =
14. 14.13 × 14 =
15. 15.99 × 88 =
16. 16.108 × 105 =
17. 17.93 × 95 =
18. 18.91 × 98 =
19. 19.115 × 97 =
20. 20.8 × 7 =
21. 21.98 × 92 =
22. 22.8 × 8 =
23. 23.6 × 7 =
24. 24.6 × 9 =
25. 25.6 × 8 =
26. 26.94 × 95 =
27. 27.1012 × 1003 =
28. 28.103 × 97 =
29. 29.97 × 90 =
30. 30.1017 × 980 =
31. 31.966 × 994 =
32. 32.97 × 96 =
33. 33.9 × 7 =
34. 34.109 × 112 =
35. 35.112 × 95 =
36. 36.109 × 92 =
37. 37.14 × 12 =
38. 38.12 × 8 =
39. 39.11 × 14 =
40. 40.99 × 88 =

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