Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 710 · 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 × 7 =
2. 2.87 × 89 =
3. 3.1006 × 1019 =
4. 4.85 × 92 =
5. 5.9 × 8 =
6. 6.95 × 85 =
7. 7.12 × 12 =
8. 8.108 × 103 =
9. 9.113 × 113 =
10. 10.12 × 12 =
11. 11.13 × 6 =
12. 12.1024 × 1022 =
13. 13.112 × 111 =
14. 14.115 × 95 =
15. 15.105 × 95 =
16. 16.9 × 6 =
17. 17.6 × 6 =
18. 18.97 × 96 =
19. 19.11 × 11 =
20. 20.998 × 985 =
21. 21.14 × 9 =
22. 22.962 × 969 =
23. 23.95 × 94 =
24. 24.110 × 108 =
25. 25.115 × 88 =
26. 26.112 × 86 =
27. 27.8 × 9 =
28. 28.98 × 88 =
29. 29.12 × 9 =
30. 30.94 × 99 =
31. 31.9 × 7 =
32. 32.89 × 99 =
33. 33.986 × 990 =
34. 34.11 × 6 =
35. 35.12 × 12 =
36. 36.108 × 110 =
37. 37.92 × 94 =
38. 38.6 × 6 =
39. 39.102 × 103 =
40. 40.8 × 6 =

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