Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 679 · 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 × 105 =
2. 2.14 × 11 =
3. 3.12 × 9 =
4. 4.1010 × 1009 =
5. 5.993 × 975 =
6. 6.9 × 8 =
7. 7.7 × 7 =
8. 8.113 × 111 =
9. 9.112 × 113 =
10. 10.13 × 7 =
11. 11.89 × 89 =
12. 12.14 × 6 =
13. 13.997 × 970 =
14. 14.92 × 91 =
15. 15.85 × 96 =
16. 16.11 × 12 =
17. 17.103 × 87 =
18. 18.7 × 6 =
19. 19.9 × 6 =
20. 20.114 × 103 =
21. 21.107 × 103 =
22. 22.89 × 89 =
23. 23.6 × 8 =
24. 24.111 × 113 =
25. 25.6 × 9 =
26. 26.11 × 11 =
27. 27.13 × 9 =
28. 28.1033 × 1029 =
29. 29.109 × 90 =
30. 30.97 × 85 =
31. 31.991 × 994 =
32. 32.969 × 965 =
33. 33.88 × 85 =
34. 34.90 × 88 =
35. 35.102 × 108 =
36. 36.13 × 13 =
37. 37.111 × 109 =
38. 38.104 × 86 =
39. 39.14 × 14 =
40. 40.991 × 963 =

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