Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 250 · 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. 1.7 × 7 =
2. 2.8 × 6 =
3. 3.110 × 104 =
4. 4.7 × 8 =
5. 5.6 × 8 =
6. 6.962 × 971 =
7. 7.115 × 101 =
8. 8.104 × 91 =
9. 9.8 × 7 =
10. 10.1002 × 1004 =
11. 11.1003 × 997 =
12. 12.8 × 6 =
13. 13.1007 × 1003 =
14. 14.1034 × 1038 =
15. 15.11 × 12 =
16. 16.102 × 93 =
17. 17.9 × 8 =
18. 18.964 × 960 =
19. 19.8 × 9 =
20. 20.14 × 13 =
21. 21.96 × 90 =
22. 22.109 × 110 =
23. 23.90 × 97 =
24. 24.113 × 109 =
25. 25.92 × 85 =
26. 26.97 × 99 =
27. 27.979 × 978 =
28. 28.960 × 983 =
29. 29.107 × 106 =
30. 30.12 × 11 =
31. 31.992 × 999 =
32. 32.104 × 99 =
33. 33.11 × 13 =
34. 34.96 × 89 =
35. 35.105 × 94 =
36. 36.976 × 983 =
37. 37.94 × 89 =
38. 38.105 × 98 =
39. 39.93 × 93 =
40. 40.109 × 115 =

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