Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 587 · 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. 1.88 × 90 =
2. 2.108 × 89 =
3. 3.1028 × 1006 =
4. 4.13 × 14 =
5. 5.89 × 94 =
6. 6.90 × 96 =
7. 7.13 × 6 =
8. 8.114 × 89 =
9. 9.1005 × 1038 =
10. 10.1019 × 968 =
11. 11.1024 × 973 =
12. 12.111 × 106 =
13. 13.1032 × 1007 =
14. 14.114 × 114 =
15. 15.11 × 13 =
16. 16.101 × 108 =
17. 17.105 × 115 =
18. 18.968 × 966 =
19. 19.9 × 9 =
20. 20.9 × 6 =
21. 21.114 × 108 =
22. 22.88 × 85 =
23. 23.97 × 89 =
24. 24.12 × 8 =
25. 25.1006 × 1040 =
26. 26.996 × 965 =
27. 27.12 × 9 =
28. 28.109 × 93 =
29. 29.88 × 91 =
30. 30.97 × 87 =
31. 31.6 × 9 =
32. 32.103 × 106 =
33. 33.7 × 8 =
34. 34.113 × 98 =
35. 35.113 × 97 =
36. 36.1001 × 965 =
37. 37.88 × 96 =
38. 38.110 × 110 =
39. 39.14 × 13 =
40. 40.101 × 104 =

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