Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 481 · 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. 1.107 × 98 =
2. 2.11 × 6 =
3. 3.93 × 89 =
4. 4.9 × 9 =
5. 5.97 × 87 =
6. 6.115 × 112 =
7. 7.1009 × 1040 =
8. 8.976 × 960 =
9. 9.97 × 95 =
10. 10.1023 × 981 =
11. 11.111 × 115 =
12. 12.1022 × 966 =
13. 13.102 × 106 =
14. 14.11 × 11 =
15. 15.1023 × 993 =
16. 16.87 × 96 =
17. 17.1033 × 1039 =
18. 18.12 × 12 =
19. 19.12 × 6 =
20. 20.1022 × 1009 =
21. 21.86 × 96 =
22. 22.89 × 87 =
23. 23.11 × 7 =
24. 24.87 × 86 =
25. 25.93 × 99 =
26. 26.14 × 7 =
27. 27.972 × 999 =
28. 28.13 × 12 =
29. 29.1016 × 1019 =
30. 30.105 × 107 =
31. 31.99 × 98 =
32. 32.1002 × 1020 =
33. 33.11 × 6 =
34. 34.13 × 7 =
35. 35.105 × 103 =
36. 36.94 × 90 =
37. 37.110 × 98 =
38. 38.12 × 14 =
39. 39.101 × 104 =
40. 40.112 × 104 =

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