Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 136 · 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. 1.11 × 11 =
2. 2.111 × 99 =
3. 3.87 × 98 =
4. 4.12 × 14 =
5. 5.8 × 7 =
6. 6.105 × 110 =
7. 7.105 × 106 =
8. 8.12 × 14 =
9. 9.101 × 110 =
10. 10.12 × 14 =
11. 11.1005 × 1036 =
12. 12.89 × 93 =
13. 13.101 × 113 =
14. 14.1002 × 994 =
15. 15.104 × 115 =
16. 16.964 × 969 =
17. 17.98 × 92 =
18. 18.86 × 98 =
19. 19.1003 × 1033 =
20. 20.6 × 7 =
21. 21.9 × 9 =
22. 22.108 × 90 =
23. 23.108 × 86 =
24. 24.109 × 103 =
25. 25.14 × 14 =
26. 26.101 × 97 =
27. 27.103 × 114 =
28. 28.87 × 89 =
29. 29.8 × 9 =
30. 30.107 × 98 =
31. 31.8 × 6 =
32. 32.103 × 101 =
33. 33.12 × 13 =
34. 34.12 × 11 =
35. 35.988 × 989 =
36. 36.107 × 90 =
37. 37.90 × 99 =
38. 38.88 × 93 =
39. 39.1025 × 1020 =
40. 40.105 × 107 =

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