Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 632 · 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. 1.109 × 106 =
2. 2.93 × 97 =
3. 3.14 × 11 =
4. 4.95 × 85 =
5. 5.9 × 8 =
6. 6.12 × 13 =
7. 7.6 × 6 =
8. 8.112 × 105 =
9. 9.14 × 11 =
10. 10.106 × 102 =
11. 11.90 × 99 =
12. 12.85 × 93 =
13. 13.8 × 9 =
14. 14.1011 × 1010 =
15. 15.13 × 6 =
16. 16.85 × 85 =
17. 17.108 × 112 =
18. 18.102 × 109 =
19. 19.115 × 104 =
20. 20.87 × 87 =
21. 21.106 × 105 =
22. 22.86 × 87 =
23. 23.102 × 88 =
24. 24.90 × 93 =
25. 25.1037 × 1038 =
26. 26.98 × 86 =
27. 27.1004 × 1026 =
28. 28.101 × 105 =
29. 29.6 × 7 =
30. 30.101 × 115 =
31. 31.101 × 102 =
32. 32.991 × 968 =
33. 33.1032 × 1034 =
34. 34.960 × 971 =
35. 35.108 × 94 =
36. 36.98 × 86 =
37. 37.1015 × 1038 =
38. 38.108 × 115 =
39. 39.97 × 95 =
40. 40.105 × 109 =

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