Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 114 · 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. 1.104 × 85 =
2. 2.96 × 87 =
3. 3.115 × 98 =
4. 4.8 × 9 =
5. 5.105 × 85 =
6. 6.102 × 106 =
7. 7.115 × 103 =
8. 8.87 × 90 =
9. 9.8 × 6 =
10. 10.13 × 9 =
11. 11.104 × 102 =
12. 12.986 × 981 =
13. 13.968 × 969 =
14. 14.983 × 979 =
15. 15.114 × 105 =
16. 16.12 × 9 =
17. 17.112 × 99 =
18. 18.105 × 106 =
19. 19.11 × 6 =
20. 20.97 × 90 =
21. 21.8 × 6 =
22. 22.8 × 6 =
23. 23.104 × 108 =
24. 24.114 × 105 =
25. 25.1023 × 1029 =
26. 26.1027 × 986 =
27. 27.993 × 989 =
28. 28.1017 × 1003 =
29. 29.113 × 88 =
30. 30.8 × 9 =
31. 31.94 × 90 =
32. 32.109 × 106 =
33. 33.12 × 13 =
34. 34.91 × 93 =
35. 35.108 × 88 =
36. 36.11 × 14 =
37. 37.13 × 11 =
38. 38.88 × 96 =
39. 39.985 × 979 =
40. 40.110 × 86 =

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