Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 978 · 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. 1.99 × 86 =
2. 2.86 × 89 =
3. 3.1008 × 1027 =
4. 4.974 × 974 =
5. 5.95 × 96 =
6. 6.11 × 9 =
7. 7.1002 × 985 =
8. 8.1013 × 1024 =
9. 9.90 × 89 =
10. 10.111 × 112 =
11. 11.89 × 88 =
12. 12.1037 × 963 =
13. 13.978 × 981 =
14. 14.92 × 90 =
15. 15.7 × 6 =
16. 16.13 × 14 =
17. 17.106 × 111 =
18. 18.993 × 965 =
19. 19.113 × 108 =
20. 20.1024 × 996 =
21. 21.98 × 87 =
22. 22.95 × 91 =
23. 23.1004 × 968 =
24. 24.1020 × 1007 =
25. 25.92 × 85 =
26. 26.14 × 8 =
27. 27.7 × 6 =
28. 28.87 × 91 =
29. 29.99 × 87 =
30. 30.13 × 9 =
31. 31.13 × 11 =
32. 32.6 × 7 =
33. 33.85 × 97 =
34. 34.103 × 89 =
35. 35.114 × 96 =
36. 36.106 × 114 =
37. 37.92 × 97 =
38. 38.1031 × 984 =
39. 39.11 × 12 =
40. 40.102 × 112 =

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