Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 188 · 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 × 85 =
2. 2.104 × 97 =
3. 3.7 × 8 =
4. 4.1016 × 1007 =
5. 5.9 × 6 =
6. 6.1011 × 1039 =
7. 7.97 × 98 =
8. 8.114 × 93 =
9. 9.14 × 12 =
10. 10.1022 × 962 =
11. 11.112 × 102 =
12. 12.12 × 12 =
13. 13.110 × 98 =
14. 14.1038 × 1018 =
15. 15.11 × 8 =
16. 16.11 × 7 =
17. 17.87 × 97 =
18. 18.87 × 91 =
19. 19.99 × 86 =
20. 20.89 × 91 =
21. 21.13 × 14 =
22. 22.88 × 87 =
23. 23.14 × 11 =
24. 24.98 × 96 =
25. 25.90 × 89 =
26. 26.108 × 88 =
27. 27.114 × 94 =
28. 28.7 × 9 =
29. 29.12 × 9 =
30. 30.96 × 85 =
31. 31.99 × 86 =
32. 32.104 × 98 =
33. 33.115 × 108 =
34. 34.113 × 111 =
35. 35.1039 × 1013 =
36. 36.12 × 13 =
37. 37.97 × 90 =
38. 38.112 × 113 =
39. 39.11 × 11 =
40. 40.992 × 982 =

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