Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 570 · 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. 1.9 × 9 =
2. 2.97 × 93 =
3. 3.11 × 13 =
4. 4.95 × 91 =
5. 5.1010 × 999 =
6. 6.114 × 107 =
7. 7.108 × 91 =
8. 8.1006 × 964 =
9. 9.7 × 9 =
10. 10.109 × 106 =
11. 11.104 × 89 =
12. 12.997 × 975 =
13. 13.105 × 94 =
14. 14.89 × 93 =
15. 15.6 × 9 =
16. 16.12 × 8 =
17. 17.7 × 8 =
18. 18.107 × 91 =
19. 19.114 × 113 =
20. 20.9 × 6 =
21. 21.1013 × 1008 =
22. 22.1016 × 1013 =
23. 23.96 × 98 =
24. 24.105 × 103 =
25. 25.12 × 12 =
26. 26.13 × 9 =
27. 27.996 × 987 =
28. 28.106 × 85 =
29. 29.14 × 11 =
30. 30.11 × 8 =
31. 31.12 × 13 =
32. 32.985 × 964 =
33. 33.13 × 13 =
34. 34.11 × 13 =
35. 35.1017 × 1017 =
36. 36.1036 × 1005 =
37. 37.982 × 974 =
38. 38.11 × 6 =
39. 39.102 × 111 =
40. 40.113 × 113 =

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