Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 492 · 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. 1.101 × 104 =
2. 2.13 × 12 =
3. 3.106 × 85 =
4. 4.104 × 102 =
5. 5.96 × 99 =
6. 6.101 × 101 =
7. 7.14 × 13 =
8. 8.108 × 110 =
9. 9.105 × 115 =
10. 10.14 × 14 =
11. 11.103 × 99 =
12. 12.7 × 8 =
13. 13.11 × 9 =
14. 14.101 × 104 =
15. 15.94 × 88 =
16. 16.9 × 9 =
17. 17.104 × 85 =
18. 18.978 × 969 =
19. 19.9 × 6 =
20. 20.11 × 11 =
21. 21.11 × 13 =
22. 22.96 × 90 =
23. 23.108 × 94 =
24. 24.88 × 94 =
25. 25.1014 × 1034 =
26. 26.7 × 7 =
27. 27.113 × 104 =
28. 28.98 × 97 =
29. 29.111 × 109 =
30. 30.99 × 98 =
31. 31.108 × 105 =
32. 32.11 × 11 =
33. 33.105 × 102 =
34. 34.6 × 8 =
35. 35.1028 × 1009 =
36. 36.982 × 981 =
37. 37.87 × 91 =
38. 38.99 × 88 =
39. 39.1028 × 989 =
40. 40.108 × 110 =

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