Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 595 · 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. 1.8 × 7 =
2. 2.86 × 99 =
3. 3.95 × 89 =
4. 4.94 × 99 =
5. 5.91 × 88 =
6. 6.961 × 999 =
7. 7.1017 × 1006 =
8. 8.7 × 8 =
9. 9.88 × 99 =
10. 10.963 × 997 =
11. 11.109 × 106 =
12. 12.108 × 108 =
13. 13.8 × 7 =
14. 14.97 × 93 =
15. 15.113 × 102 =
16. 16.114 × 105 =
17. 17.9 × 8 =
18. 18.110 × 88 =
19. 19.1024 × 1021 =
20. 20.102 × 114 =
21. 21.1026 × 1010 =
22. 22.106 × 103 =
23. 23.95 × 99 =
24. 24.101 × 108 =
25. 25.114 × 98 =
26. 26.115 × 92 =
27. 27.98 × 97 =
28. 28.14 × 9 =
29. 29.8 × 6 =
30. 30.9 × 6 =
31. 31.995 × 985 =
32. 32.14 × 8 =
33. 33.93 × 88 =
34. 34.13 × 7 =
35. 35.1010 × 997 =
36. 36.13 × 9 =
37. 37.96 × 93 =
38. 38.12 × 11 =
39. 39.108 × 94 =
40. 40.1017 × 1011 =

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