Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 55 · 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. 1.108 × 101 =
2. 2.95 × 98 =
3. 3.971 × 987 =
4. 4.11 × 14 =
5. 5.962 × 975 =
6. 6.6 × 7 =
7. 7.12 × 11 =
8. 8.13 × 8 =
9. 9.12 × 6 =
10. 10.97 × 87 =
11. 11.1001 × 989 =
12. 12.85 × 93 =
13. 13.106 × 104 =
14. 14.6 × 9 =
15. 15.85 × 89 =
16. 16.8 × 8 =
17. 17.11 × 7 =
18. 18.13 × 12 =
19. 19.97 × 86 =
20. 20.14 × 11 =
21. 21.970 × 986 =
22. 22.13 × 9 =
23. 23.13 × 11 =
24. 24.114 × 92 =
25. 25.89 × 97 =
26. 26.11 × 12 =
27. 27.8 × 7 =
28. 28.106 × 104 =
29. 29.7 × 6 =
30. 30.85 × 86 =
31. 31.7 × 9 =
32. 32.103 × 99 =
33. 33.105 × 108 =
34. 34.14 × 6 =
35. 35.1003 × 1014 =
36. 36.91 × 85 =
37. 37.104 × 114 =
38. 38.13 × 11 =
39. 39.98 × 88 =
40. 40.111 × 108 =

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