Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 821 · 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. 1.106 × 113 =
2. 2.101 × 108 =
3. 3.6 × 8 =
4. 4.104 × 87 =
5. 5.99 × 90 =
6. 6.105 × 115 =
7. 7.14 × 6 =
8. 8.1001 × 972 =
9. 9.8 × 6 =
10. 10.1009 × 1034 =
11. 11.114 × 103 =
12. 12.12 × 11 =
13. 13.88 × 96 =
14. 14.110 × 101 =
15. 15.95 × 91 =
16. 16.108 × 88 =
17. 17.14 × 11 =
18. 18.1016 × 965 =
19. 19.108 × 88 =
20. 20.971 × 999 =
21. 21.13 × 14 =
22. 22.99 × 88 =
23. 23.1010 × 1023 =
24. 24.114 × 91 =
25. 25.115 × 102 =
26. 26.105 × 108 =
27. 27.106 × 105 =
28. 28.12 × 12 =
29. 29.1014 × 991 =
30. 30.1001 × 1026 =
31. 31.106 × 99 =
32. 32.981 × 995 =
33. 33.95 × 93 =
34. 34.975 × 971 =
35. 35.104 × 105 =
36. 36.115 × 105 =
37. 37.1012 × 982 =
38. 38.88 × 97 =
39. 39.7 × 8 =
40. 40.107 × 102 =

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