Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 440 · 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. 1.110 × 106 =
2. 2.8 × 6 =
3. 3.91 × 85 =
4. 4.106 × 109 =
5. 5.107 × 85 =
6. 6.7 × 9 =
7. 7.106 × 86 =
8. 8.115 × 112 =
9. 9.1040 × 1006 =
10. 10.12 × 11 =
11. 11.14 × 8 =
12. 12.103 × 85 =
13. 13.11 × 7 =
14. 14.1040 × 999 =
15. 15.997 × 966 =
16. 16.107 × 106 =
17. 17.111 × 115 =
18. 18.115 × 111 =
19. 19.1030 × 1004 =
20. 20.9 × 7 =
21. 21.999 × 997 =
22. 22.101 × 113 =
23. 23.93 × 99 =
24. 24.90 × 89 =
25. 25.9 × 7 =
26. 26.89 × 98 =
27. 27.95 × 94 =
28. 28.13 × 13 =
29. 29.104 × 103 =
30. 30.106 × 91 =
31. 31.101 × 85 =
32. 32.972 × 996 =
33. 33.6 × 6 =
34. 34.89 × 96 =
35. 35.108 × 104 =
36. 36.108 × 115 =
37. 37.110 × 86 =
38. 38.103 × 103 =
39. 39.7 × 6 =
40. 40.1001 × 983 =

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