Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 687 · 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. 2.107 × 86 =
3. 3.1003 × 1017 =
4. 4.91 × 87 =
5. 5.115 × 103 =
6. 6.94 × 98 =
7. 7.87 × 98 =
8. 8.108 × 101 =
9. 9.12 × 12 =
10. 10.107 × 102 =
11. 11.88 × 96 =
12. 12.1030 × 996 =
13. 13.101 × 93 =
14. 14.1036 × 1026 =
15. 15.109 × 98 =
16. 16.107 × 97 =
17. 17.12 × 7 =
18. 18.6 × 9 =
19. 19.14 × 14 =
20. 20.997 × 965 =
21. 21.87 × 88 =
22. 22.11 × 11 =
23. 23.112 × 92 =
24. 24.9 × 7 =
25. 25.986 × 965 =
26. 26.1028 × 1040 =
27. 27.976 × 984 =
28. 28.115 × 115 =
29. 29.983 × 998 =
30. 30.97 × 98 =
31. 31.977 × 963 =
32. 32.98 × 91 =
33. 33.114 × 109 =
34. 34.6 × 6 =
35. 35.1002 × 1035 =
36. 36.96 × 94 =
37. 37.101 × 112 =
38. 38.106 × 107 =
39. 39.101 × 114 =
40. 40.996 × 973 =

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