Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 384 · 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. 2.105 × 103 =
3. 3.14 × 13 =
4. 4.13 × 11 =
5. 5.104 × 111 =
6. 6.6 × 7 =
7. 7.11 × 11 =
8. 8.6 × 8 =
9. 9.101 × 93 =
10. 10.90 × 87 =
11. 11.107 × 101 =
12. 12.98 × 99 =
13. 13.109 × 93 =
14. 14.107 × 99 =
15. 15.9 × 8 =
16. 16.101 × 109 =
17. 17.6 × 8 =
18. 18.11 × 12 =
19. 19.102 × 99 =
20. 20.991 × 987 =
21. 21.1031 × 979 =
22. 22.99 × 93 =
23. 23.106 × 97 =
24. 24.99 × 96 =
25. 25.86 × 99 =
26. 26.12 × 14 =
27. 27.982 × 977 =
28. 28.102 × 92 =
29. 29.103 × 90 =
30. 30.109 × 111 =
31. 31.14 × 14 =
32. 32.97 × 86 =
33. 33.88 × 86 =
34. 34.112 × 114 =
35. 35.92 × 87 =
36. 36.107 × 104 =
37. 37.97 × 99 =
38. 38.9 × 6 =
39. 39.113 × 103 =
40. 40.1038 × 1037 =

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