Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 3 · 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. 1.114 × 108 =
2. 2.12 × 13 =
3. 3.111 × 110 =
4. 4.13 × 11 =
5. 5.91 × 96 =
6. 6.107 × 107 =
7. 7.101 × 102 =
8. 8.101 × 107 =
9. 9.104 × 103 =
10. 10.13 × 7 =
11. 11.1025 × 1033 =
12. 12.88 × 99 =
13. 13.7 × 9 =
14. 14.6 × 9 =
15. 15.111 × 88 =
16. 16.89 × 98 =
17. 17.92 × 90 =
18. 18.92 × 90 =
19. 19.91 × 93 =
20. 20.1012 × 970 =
21. 21.11 × 8 =
22. 22.95 × 91 =
23. 23.109 × 102 =
24. 24.9 × 9 =
25. 25.91 × 94 =
26. 26.12 × 8 =
27. 27.102 × 94 =
28. 28.99 × 88 =
29. 29.13 × 11 =
30. 30.108 × 92 =
31. 31.106 × 102 =
32. 32.103 × 103 =
33. 33.13 × 9 =
34. 34.6 × 6 =
35. 35.94 × 88 =
36. 36.99 × 85 =
37. 37.1027 × 1024 =
38. 38.14 × 6 =
39. 39.104 × 113 =
40. 40.1022 × 1035 =

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