Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 785 · 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. 1.103 × 103 =
2. 2.113 × 112 =
3. 3.101 × 112 =
4. 4.108 × 102 =
5. 5.6 × 6 =
6. 6.11 × 13 =
7. 7.87 × 97 =
8. 8.11 × 9 =
9. 9.977 × 977 =
10. 10.89 × 96 =
11. 11.102 × 97 =
12. 12.98 × 91 =
13. 13.6 × 6 =
14. 14.104 × 102 =
15. 15.6 × 8 =
16. 16.13 × 12 =
17. 17.1017 × 986 =
18. 18.1001 × 971 =
19. 19.113 × 114 =
20. 20.98 × 87 =
21. 21.9 × 7 =
22. 22.114 × 111 =
23. 23.12 × 6 =
24. 24.96 × 95 =
25. 25.1001 × 1027 =
26. 26.90 × 85 =
27. 27.88 × 92 =
28. 28.14 × 7 =
29. 29.997 × 989 =
30. 30.103 × 101 =
31. 31.107 × 104 =
32. 32.97 × 88 =
33. 33.103 × 101 =
34. 34.964 × 964 =
35. 35.92 × 91 =
36. 36.11 × 14 =
37. 37.102 × 108 =
38. 38.87 × 92 =
39. 39.105 × 105 =
40. 40.1014 × 966 =

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