Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 822 · 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. 1.108 × 89 =
2. 2.8 × 7 =
3. 3.991 × 971 =
4. 4.8 × 6 =
5. 5.1013 × 972 =
6. 6.13 × 14 =
7. 7.1034 × 986 =
8. 8.86 × 95 =
9. 9.1038 × 1024 =
10. 10.11 × 9 =
11. 11.96 × 91 =
12. 12.113 × 88 =
13. 13.92 × 96 =
14. 14.977 × 975 =
15. 15.92 × 97 =
16. 16.110 × 104 =
17. 17.107 × 98 =
18. 18.113 × 104 =
19. 19.981 × 976 =
20. 20.1012 × 967 =
21. 21.86 × 88 =
22. 22.14 × 13 =
23. 23.9 × 7 =
24. 24.109 × 94 =
25. 25.6 × 8 =
26. 26.13 × 14 =
27. 27.7 × 9 =
28. 28.88 × 96 =
29. 29.1036 × 1037 =
30. 30.115 × 99 =
31. 31.13 × 14 =
32. 32.13 × 6 =
33. 33.88 × 91 =
34. 34.102 × 111 =
35. 35.973 × 978 =
36. 36.104 × 103 =
37. 37.964 × 971 =
38. 38.98 × 99 =
39. 39.8 × 9 =
40. 40.12 × 13 =

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