Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 255 · 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. 1.9 × 9 =
2. 2.14 × 12 =
3. 3.115 × 111 =
4. 4.1025 × 1010 =
5. 5.94 × 87 =
6. 6.113 × 109 =
7. 7.98 × 94 =
8. 8.12 × 11 =
9. 9.12 × 11 =
10. 10.9 × 8 =
11. 11.88 × 94 =
12. 12.87 × 92 =
13. 13.1001 × 1018 =
14. 14.975 × 990 =
15. 15.111 × 99 =
16. 16.12 × 13 =
17. 17.13 × 7 =
18. 18.14 × 11 =
19. 19.1018 × 960 =
20. 20.6 × 9 =
21. 21.110 × 109 =
22. 22.11 × 6 =
23. 23.9 × 6 =
24. 24.981 × 995 =
25. 25.94 × 86 =
26. 26.101 × 112 =
27. 27.981 × 970 =
28. 28.109 × 87 =
29. 29.1009 × 1031 =
30. 30.115 × 91 =
31. 31.105 × 105 =
32. 32.111 × 114 =
33. 33.108 × 95 =
34. 34.11 × 9 =
35. 35.90 × 97 =
36. 36.97 × 95 =
37. 37.101 × 102 =
38. 38.102 × 101 =
39. 39.104 × 98 =
40. 40.9 × 7 =

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