Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 852 · 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. 1.114 × 98 =
2. 2.108 × 112 =
3. 3.86 × 86 =
4. 4.13 × 11 =
5. 5.92 × 93 =
6. 6.965 × 961 =
7. 7.87 × 99 =
8. 8.9 × 9 =
9. 9.979 × 994 =
10. 10.85 × 99 =
11. 11.107 × 105 =
12. 12.94 × 89 =
13. 13.98 × 95 =
14. 14.86 × 86 =
15. 15.102 × 93 =
16. 16.92 × 97 =
17. 17.12 × 14 =
18. 18.106 × 106 =
19. 19.109 × 112 =
20. 20.113 × 88 =
21. 21.13 × 6 =
22. 22.110 × 108 =
23. 23.11 × 7 =
24. 24.114 × 101 =
25. 25.85 × 89 =
26. 26.98 × 89 =
27. 27.11 × 11 =
28. 28.88 × 92 =
29. 29.102 × 111 =
30. 30.110 × 91 =
31. 31.1011 × 1031 =
32. 32.1035 × 971 =
33. 33.14 × 7 =
34. 34.115 × 87 =
35. 35.92 × 86 =
36. 36.89 × 86 =
37. 37.1002 × 975 =
38. 38.1037 × 960 =
39. 39.12 × 12 =
40. 40.102 × 101 =

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