Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 277 · 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. 1.1007 × 1029 =
2. 2.11 × 14 =
3. 3.108 × 92 =
4. 4.8 × 6 =
5. 5.1023 × 983 =
6. 6.104 × 103 =
7. 7.14 × 7 =
8. 8.115 × 92 =
9. 9.14 × 11 =
10. 10.104 × 97 =
11. 11.7 × 7 =
12. 12.12 × 11 =
13. 13.1003 × 1034 =
14. 14.13 × 13 =
15. 15.11 × 14 =
16. 16.97 × 88 =
17. 17.102 × 102 =
18. 18.974 × 960 =
19. 19.95 × 88 =
20. 20.14 × 9 =
21. 21.981 × 997 =
22. 22.1006 × 1007 =
23. 23.97 × 99 =
24. 24.110 × 102 =
25. 25.1004 × 981 =
26. 26.108 × 107 =
27. 27.93 × 99 =
28. 28.1034 × 1030 =
29. 29.12 × 13 =
30. 30.1031 × 977 =
31. 31.90 × 94 =
32. 32.12 × 12 =
33. 33.110 × 101 =
34. 34.102 × 114 =
35. 35.103 × 113 =
36. 36.7 × 6 =
37. 37.111 × 88 =
38. 38.85 × 85 =
39. 39.9 × 8 =
40. 40.11 × 11 =

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