Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 174 · 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. 1.91 × 93 =
2. 2.8 × 6 =
3. 3.1021 × 986 =
4. 4.109 × 95 =
5. 5.7 × 8 =
6. 6.12 × 12 =
7. 7.8 × 8 =
8. 8.6 × 7 =
9. 9.92 × 94 =
10. 10.115 × 85 =
11. 11.981 × 991 =
12. 12.114 × 95 =
13. 13.7 × 9 =
14. 14.95 × 86 =
15. 15.97 × 97 =
16. 16.105 × 108 =
17. 17.97 × 99 =
18. 18.1007 × 1015 =
19. 19.85 × 93 =
20. 20.87 × 90 =
21. 21.1018 × 960 =
22. 22.986 × 961 =
23. 23.968 × 994 =
24. 24.91 × 95 =
25. 25.85 × 88 =
26. 26.102 × 98 =
27. 27.110 × 97 =
28. 28.8 × 9 =
29. 29.87 × 88 =
30. 30.99 × 98 =
31. 31.101 × 103 =
32. 32.98 × 98 =
33. 33.92 × 98 =
34. 34.106 × 104 =
35. 35.87 × 90 =
36. 36.113 × 105 =
37. 37.106 × 110 =
38. 38.1008 × 1002 =
39. 39.982 × 965 =
40. 40.1005 × 1003 =

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