Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 116 · 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. 1.1036 × 1012 =
2. 2.6 × 9 =
3. 3.8 × 6 =
4. 4.92 × 85 =
5. 5.101 × 93 =
6. 6.7 × 9 =
7. 7.14 × 13 =
8. 8.12 × 14 =
9. 9.8 × 8 =
10. 10.89 × 87 =
11. 11.9 × 6 =
12. 12.86 × 94 =
13. 13.12 × 13 =
14. 14.112 × 102 =
15. 15.91 × 91 =
16. 16.86 × 99 =
17. 17.13 × 13 =
18. 18.113 × 102 =
19. 19.115 × 90 =
20. 20.94 × 92 =
21. 21.99 × 92 =
22. 22.105 × 85 =
23. 23.13 × 14 =
24. 24.86 × 89 =
25. 25.7 × 8 =
26. 26.7 × 8 =
27. 27.86 × 86 =
28. 28.962 × 988 =
29. 29.8 × 7 =
30. 30.1003 × 1027 =
31. 31.107 × 112 =
32. 32.106 × 105 =
33. 33.11 × 14 =
34. 34.85 × 92 =
35. 35.106 × 106 =
36. 36.103 × 99 =
37. 37.99 × 94 =
38. 38.101 × 99 =
39. 39.1011 × 1025 =
40. 40.105 × 112 =

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