Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 161 · 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. 1.102 × 91 =
2. 2.89 × 93 =
3. 3.1003 × 960 =
4. 4.86 × 96 =
5. 5.1037 × 1014 =
6. 6.94 × 98 =
7. 7.107 × 98 =
8. 8.13 × 9 =
9. 9.91 × 94 =
10. 10.103 × 95 =
11. 11.963 × 998 =
12. 12.7 × 6 =
13. 13.1012 × 1028 =
14. 14.110 × 92 =
15. 15.961 × 988 =
16. 16.7 × 6 =
17. 17.14 × 12 =
18. 18.11 × 9 =
19. 19.6 × 7 =
20. 20.13 × 6 =
21. 21.11 × 6 =
22. 22.93 × 88 =
23. 23.6 × 9 =
24. 24.6 × 9 =
25. 25.6 × 6 =
26. 26.101 × 85 =
27. 27.7 × 9 =
28. 28.89 × 88 =
29. 29.1008 × 999 =
30. 30.105 × 109 =
31. 31.1019 × 1006 =
32. 32.114 × 103 =
33. 33.105 × 108 =
34. 34.7 × 8 =
35. 35.9 × 7 =
36. 36.6 × 8 =
37. 37.978 × 986 =
38. 38.9 × 8 =
39. 39.105 × 113 =
40. 40.9 × 6 =

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