Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 583 · 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. 1.105 × 85 =
2. 2.9 × 9 =
3. 3.103 × 101 =
4. 4.12 × 14 =
5. 5.114 × 101 =
6. 6.1033 × 1016 =
7. 7.90 × 86 =
8. 8.113 × 97 =
9. 9.976 × 978 =
10. 10.7 × 9 =
11. 11.8 × 6 =
12. 12.11 × 7 =
13. 13.94 × 93 =
14. 14.99 × 96 =
15. 15.104 × 106 =
16. 16.115 × 113 =
17. 17.96 × 99 =
18. 18.111 × 109 =
19. 19.8 × 9 =
20. 20.87 × 91 =
21. 21.973 × 993 =
22. 22.113 × 85 =
23. 23.114 × 103 =
24. 24.106 × 93 =
25. 25.104 × 111 =
26. 26.8 × 6 =
27. 27.88 × 89 =
28. 28.85 × 88 =
29. 29.104 × 108 =
30. 30.99 × 93 =
31. 31.106 × 107 =
32. 32.107 × 86 =
33. 33.7 × 8 =
34. 34.983 × 989 =
35. 35.107 × 104 =
36. 36.14 × 7 =
37. 37.93 × 97 =
38. 38.105 × 111 =
39. 39.12 × 9 =
40. 40.9 × 7 =

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