Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 434 · 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. 1.13 × 7 =
2. 2.110 × 101 =
3. 3.11 × 11 =
4. 4.103 × 99 =
5. 5.90 × 98 =
6. 6.14 × 12 =
7. 7.14 × 11 =
8. 8.1004 × 1037 =
9. 9.9 × 6 =
10. 10.8 × 6 =
11. 11.1039 × 992 =
12. 12.971 × 993 =
13. 13.13 × 8 =
14. 14.993 × 996 =
15. 15.97 × 99 =
16. 16.6 × 7 =
17. 17.13 × 12 =
18. 18.92 × 95 =
19. 19.11 × 13 =
20. 20.108 × 91 =
21. 21.995 × 997 =
22. 22.87 × 99 =
23. 23.104 × 106 =
24. 24.13 × 7 =
25. 25.11 × 12 =
26. 26.87 × 91 =
27. 27.92 × 91 =
28. 28.1009 × 973 =
29. 29.994 × 970 =
30. 30.93 × 89 =
31. 31.92 × 99 =
32. 32.8 × 8 =
33. 33.104 × 111 =
34. 34.108 × 89 =
35. 35.102 × 109 =
36. 36.102 × 102 =
37. 37.108 × 101 =
38. 38.6 × 8 =
39. 39.92 × 96 =
40. 40.9 × 9 =

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