Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 214 · 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. 2.106 × 90 =
3. 3.12 × 12 =
4. 4.6 × 7 =
5. 5.85 × 86 =
6. 6.11 × 8 =
7. 7.115 × 99 =
8. 8.104 × 112 =
9. 9.92 × 92 =
10. 10.7 × 7 =
11. 11.6 × 8 =
12. 12.115 × 99 =
13. 13.97 × 88 =
14. 14.971 × 998 =
15. 15.95 × 96 =
16. 16.8 × 7 =
17. 17.111 × 106 =
18. 18.13 × 9 =
19. 19.104 × 109 =
20. 20.115 × 114 =
21. 21.108 × 115 =
22. 22.994 × 990 =
23. 23.111 × 90 =
24. 24.97 × 92 =
25. 25.114 × 107 =
26. 26.107 × 99 =
27. 27.11 × 6 =
28. 28.95 × 87 =
29. 29.95 × 89 =
30. 30.88 × 99 =
31. 31.11 × 11 =
32. 32.99 × 99 =
33. 33.12 × 8 =
34. 34.89 × 86 =
35. 35.11 × 6 =
36. 36.105 × 102 =
37. 37.107 × 99 =
38. 38.112 × 94 =
39. 39.1031 × 1038 =
40. 40.97 × 85 =

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