Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 549 · 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. 1.12 × 11 =
2. 2.999 × 982 =
3. 3.977 × 986 =
4. 4.92 × 86 =
5. 5.89 × 93 =
6. 6.11 × 6 =
7. 7.7 × 7 =
8. 8.107 × 104 =
9. 9.8 × 8 =
10. 10.6 × 6 =
11. 11.93 × 93 =
12. 12.11 × 11 =
13. 13.12 × 7 =
14. 14.111 × 102 =
15. 15.104 × 95 =
16. 16.96 × 87 =
17. 17.101 × 97 =
18. 18.91 × 89 =
19. 19.14 × 11 =
20. 20.102 × 101 =
21. 21.14 × 11 =
22. 22.1001 × 1013 =
23. 23.963 × 987 =
24. 24.88 × 96 =
25. 25.104 × 113 =
26. 26.105 × 92 =
27. 27.14 × 9 =
28. 28.86 × 93 =
29. 29.115 × 103 =
30. 30.110 × 101 =
31. 31.95 × 98 =
32. 32.6 × 8 =
33. 33.87 × 89 =
34. 34.97 × 91 =
35. 35.12 × 13 =
36. 36.1025 × 1004 =
37. 37.12 × 13 =
38. 38.112 × 113 =
39. 39.106 × 107 =
40. 40.991 × 991 =

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