Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 673 · 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. 1.12 × 9 =
2. 2.106 × 97 =
3. 3.109 × 110 =
4. 4.88 × 97 =
5. 5.8 × 6 =
6. 6.94 × 92 =
7. 7.1004 × 988 =
8. 8.985 × 989 =
9. 9.11 × 11 =
10. 10.7 × 9 =
11. 11.94 × 85 =
12. 12.1005 × 1011 =
13. 13.88 × 93 =
14. 14.995 × 985 =
15. 15.9 × 7 =
16. 16.112 × 95 =
17. 17.9 × 6 =
18. 18.12 × 8 =
19. 19.86 × 95 =
20. 20.14 × 6 =
21. 21.8 × 9 =
22. 22.111 × 86 =
23. 23.974 × 999 =
24. 24.962 × 976 =
25. 25.87 × 99 =
26. 26.105 × 113 =
27. 27.96 × 89 =
28. 28.1012 × 1002 =
29. 29.87 × 90 =
30. 30.12 × 9 =
31. 31.96 × 86 =
32. 32.9 × 8 =
33. 33.1029 × 1037 =
34. 34.96 × 90 =
35. 35.6 × 7 =
36. 36.96 × 89 =
37. 37.106 × 114 =
38. 38.14 × 13 =
39. 39.91 × 99 =
40. 40.85 × 96 =

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