Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 11 · 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. 1.8 × 7 =
2. 2.965 × 990 =
3. 3.14 × 8 =
4. 4.8 × 8 =
5. 5.114 × 104 =
6. 6.96 × 90 =
7. 7.7 × 8 =
8. 8.87 × 89 =
9. 9.93 × 87 =
10. 10.112 × 108 =
11. 11.92 × 89 =
12. 12.9 × 6 =
13. 13.14 × 13 =
14. 14.6 × 9 =
15. 15.978 × 971 =
16. 16.102 × 104 =
17. 17.104 × 104 =
18. 18.105 × 87 =
19. 19.108 × 106 =
20. 20.1034 × 1013 =
21. 21.1025 × 1015 =
22. 22.14 × 12 =
23. 23.86 × 91 =
24. 24.1024 × 963 =
25. 25.115 × 112 =
26. 26.96 × 94 =
27. 27.11 × 8 =
28. 28.103 × 87 =
29. 29.114 × 89 =
30. 30.94 × 92 =
31. 31.12 × 12 =
32. 32.113 × 107 =
33. 33.990 × 963 =
34. 34.1024 × 995 =
35. 35.9 × 8 =
36. 36.14 × 7 =
37. 37.1012 × 994 =
38. 38.14 × 9 =
39. 39.102 × 109 =
40. 40.9 × 7 =

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