Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 187 · 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. 1.86 × 86 =
2. 2.12 × 9 =
3. 3.9 × 9 =
4. 4.104 × 103 =
5. 5.102 × 99 =
6. 6.1002 × 1039 =
7. 7.1008 × 1033 =
8. 8.93 × 86 =
9. 9.91 × 94 =
10. 10.103 × 107 =
11. 11.985 × 996 =
12. 12.87 × 85 =
13. 13.96 × 85 =
14. 14.966 × 991 =
15. 15.102 × 103 =
16. 16.96 × 92 =
17. 17.1031 × 1038 =
18. 18.110 × 92 =
19. 19.109 × 94 =
20. 20.9 × 7 =
21. 21.7 × 8 =
22. 22.1016 × 966 =
23. 23.109 × 108 =
24. 24.105 × 111 =
25. 25.104 × 98 =
26. 26.115 × 87 =
27. 27.985 × 967 =
28. 28.12 × 7 =
29. 29.88 × 93 =
30. 30.105 × 88 =
31. 31.109 × 95 =
32. 32.11 × 14 =
33. 33.111 × 106 =
34. 34.103 × 90 =
35. 35.8 × 7 =
36. 36.976 × 973 =
37. 37.106 × 93 =
38. 38.1014 × 997 =
39. 39.105 × 101 =
40. 40.7 × 8 =

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