Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 882 · 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. 2.91 × 97 =
3. 3.104 × 114 =
4. 4.8 × 7 =
5. 5.11 × 6 =
6. 6.104 × 108 =
7. 7.6 × 7 =
8. 8.101 × 109 =
9. 9.13 × 12 =
10. 10.9 × 9 =
11. 11.1014 × 1010 =
12. 12.14 × 13 =
13. 13.97 × 93 =
14. 14.13 × 13 =
15. 15.85 × 98 =
16. 16.106 × 103 =
17. 17.99 × 93 =
18. 18.109 × 111 =
19. 19.94 × 86 =
20. 20.101 × 93 =
21. 21.103 × 104 =
22. 22.12 × 9 =
23. 23.7 × 7 =
24. 24.90 × 90 =
25. 25.9 × 8 =
26. 26.6 × 9 =
27. 27.8 × 9 =
28. 28.88 × 90 =
29. 29.12 × 13 =
30. 30.988 × 999 =
31. 31.1033 × 1007 =
32. 32.95 × 90 =
33. 33.1031 × 1009 =
34. 34.93 × 85 =
35. 35.90 × 88 =
36. 36.104 × 111 =
37. 37.111 × 106 =
38. 38.1034 × 968 =
39. 39.109 × 112 =
40. 40.115 × 90 =

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