Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 922 · 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. 1.13 × 9 =
2. 2.1013 × 1026 =
3. 3.11 × 13 =
4. 4.971 × 976 =
5. 5.12 × 14 =
6. 6.1033 × 974 =
7. 7.115 × 95 =
8. 8.93 × 93 =
9. 9.8 × 6 =
10. 10.13 × 9 =
11. 11.95 × 95 =
12. 12.1034 × 980 =
13. 13.983 × 998 =
14. 14.115 × 101 =
15. 15.87 × 92 =
16. 16.99 × 96 =
17. 17.113 × 105 =
18. 18.1004 × 963 =
19. 19.977 × 991 =
20. 20.85 × 94 =
21. 21.115 × 114 =
22. 22.7 × 7 =
23. 23.11 × 11 =
24. 24.12 × 13 =
25. 25.114 × 99 =
26. 26.14 × 9 =
27. 27.95 × 93 =
28. 28.1013 × 1028 =
29. 29.110 × 93 =
30. 30.105 × 104 =
31. 31.90 × 88 =
32. 32.1021 × 1031 =
33. 33.91 × 99 =
34. 34.98 × 97 =
35. 35.108 × 91 =
36. 36.110 × 91 =
37. 37.103 × 103 =
38. 38.86 × 96 =
39. 39.1012 × 969 =
40. 40.965 × 986 =

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