Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 705 · 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. 1.7 × 9 =
2. 2.112 × 102 =
3. 3.974 × 993 =
4. 4.93 × 87 =
5. 5.6 × 6 =
6. 6.9 × 7 =
7. 7.14 × 6 =
8. 8.111 × 102 =
9. 9.96 × 92 =
10. 10.112 × 92 =
11. 11.1014 × 1039 =
12. 12.11 × 9 =
13. 13.11 × 13 =
14. 14.93 × 87 =
15. 15.966 × 997 =
16. 16.13 × 11 =
17. 17.7 × 6 =
18. 18.90 × 86 =
19. 19.8 × 7 =
20. 20.105 × 102 =
21. 21.113 × 108 =
22. 22.108 × 88 =
23. 23.108 × 115 =
24. 24.93 × 93 =
25. 25.9 × 8 =
26. 26.1004 × 1039 =
27. 27.96 × 92 =
28. 28.91 × 94 =
29. 29.6 × 6 =
30. 30.12 × 12 =
31. 31.11 × 11 =
32. 32.113 × 107 =
33. 33.87 × 98 =
34. 34.994 × 960 =
35. 35.110 × 106 =
36. 36.14 × 7 =
37. 37.1007 × 1011 =
38. 38.13 × 13 =
39. 39.89 × 97 =
40. 40.86 × 96 =

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