Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 890 · 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. 1.8 × 6 =
2. 2.11 × 12 =
3. 3.104 × 105 =
4. 4.105 × 111 =
5. 5.987 × 973 =
6. 6.106 × 86 =
7. 7.88 × 88 =
8. 8.90 × 99 =
9. 9.1002 × 1004 =
10. 10.1018 × 1010 =
11. 11.106 × 103 =
12. 12.101 × 90 =
13. 13.9 × 6 =
14. 14.1020 × 979 =
15. 15.1037 × 962 =
16. 16.103 × 113 =
17. 17.86 × 89 =
18. 18.111 × 103 =
19. 19.91 × 96 =
20. 20.12 × 12 =
21. 21.14 × 8 =
22. 22.14 × 7 =
23. 23.96 × 93 =
24. 24.999 × 966 =
25. 25.101 × 111 =
26. 26.87 × 95 =
27. 27.14 × 14 =
28. 28.113 × 95 =
29. 29.110 × 109 =
30. 30.13 × 11 =
31. 31.97 × 98 =
32. 32.115 × 114 =
33. 33.95 × 99 =
34. 34.103 × 114 =
35. 35.108 × 103 =
36. 36.1016 × 968 =
37. 37.13 × 12 =
38. 38.95 × 86 =
39. 39.93 × 96 =
40. 40.102 × 104 =

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