Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 478 · 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. 1.94 × 90 =
2. 2.113 × 102 =
3. 3.115 × 112 =
4. 4.94 × 90 =
5. 5.112 × 85 =
6. 6.97 × 93 =
7. 7.102 × 105 =
8. 8.7 × 8 =
9. 9.115 × 103 =
10. 10.107 × 102 =
11. 11.6 × 8 =
12. 12.96 × 88 =
13. 13.11 × 9 =
14. 14.975 × 994 =
15. 15.87 × 91 =
16. 16.102 × 98 =
17. 17.93 × 89 =
18. 18.99 × 85 =
19. 19.96 × 97 =
20. 20.14 × 14 =
21. 21.6 × 6 =
22. 22.109 × 92 =
23. 23.1020 × 960 =
24. 24.14 × 9 =
25. 25.97 × 97 =
26. 26.985 × 973 =
27. 27.1036 × 1006 =
28. 28.92 × 87 =
29. 29.115 × 103 =
30. 30.11 × 12 =
31. 31.1019 × 1028 =
32. 32.105 × 108 =
33. 33.9 × 6 =
34. 34.99 × 88 =
35. 35.6 × 7 =
36. 36.1018 × 1034 =
37. 37.12 × 13 =
38. 38.107 × 91 =
39. 39.1012 × 1017 =
40. 40.89 × 92 =

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