Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 645 · 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 × 96 =
2. 2.106 × 91 =
3. 3.113 × 98 =
4. 4.993 × 992 =
5. 5.105 × 98 =
6. 6.101 × 94 =
7. 7.1037 × 1033 =
8. 8.974 × 986 =
9. 9.11 × 6 =
10. 10.114 × 105 =
11. 11.7 × 9 =
12. 12.101 × 96 =
13. 13.14 × 8 =
14. 14.91 × 93 =
15. 15.1006 × 1008 =
16. 16.112 × 94 =
17. 17.11 × 13 =
18. 18.103 × 87 =
19. 19.975 × 996 =
20. 20.85 × 97 =
21. 21.86 × 97 =
22. 22.9 × 6 =
23. 23.6 × 7 =
24. 24.1002 × 1010 =
25. 25.111 × 85 =
26. 26.111 × 87 =
27. 27.113 × 103 =
28. 28.97 × 87 =
29. 29.1013 × 999 =
30. 30.1035 × 1003 =
31. 31.85 × 98 =
32. 32.105 × 114 =
33. 33.11 × 8 =
34. 34.104 × 104 =
35. 35.105 × 111 =
36. 36.109 × 94 =
37. 37.13 × 11 =
38. 38.8 × 8 =
39. 39.972 × 970 =
40. 40.1002 × 973 =

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