Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 625 · 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. 2.977 × 989 =
3. 3.87 × 89 =
4. 4.87 × 97 =
5. 5.12 × 13 =
6. 6.104 × 101 =
7. 7.105 × 87 =
8. 8.8 × 7 =
9. 9.999 × 977 =
10. 10.103 × 90 =
11. 11.990 × 963 =
12. 12.110 × 91 =
13. 13.8 × 9 =
14. 14.9 × 7 =
15. 15.13 × 13 =
16. 16.107 × 111 =
17. 17.89 × 86 =
18. 18.96 × 90 =
19. 19.102 × 103 =
20. 20.6 × 6 =
21. 21.13 × 9 =
22. 22.106 × 107 =
23. 23.113 × 91 =
24. 24.108 × 103 =
25. 25.99 × 99 =
26. 26.999 × 982 =
27. 27.107 × 105 =
28. 28.8 × 6 =
29. 29.9 × 6 =
30. 30.110 × 106 =
31. 31.1039 × 992 =
32. 32.978 × 978 =
33. 33.9 × 8 =
34. 34.98 × 89 =
35. 35.13 × 9 =
36. 36.7 × 6 =
37. 37.6 × 7 =
38. 38.967 × 983 =
39. 39.11 × 11 =
40. 40.1010 × 1032 =

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