Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 417 · 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. 1.102 × 85 =
2. 2.91 × 99 =
3. 3.1009 × 975 =
4. 4.87 × 91 =
5. 5.115 × 103 =
6. 6.9 × 9 =
7. 7.91 × 86 =
8. 8.112 × 92 =
9. 9.91 × 91 =
10. 10.106 × 108 =
11. 11.1023 × 1018 =
12. 12.9 × 7 =
13. 13.974 × 972 =
14. 14.91 × 85 =
15. 15.11 × 6 =
16. 16.95 × 96 =
17. 17.106 × 103 =
18. 18.12 × 9 =
19. 19.109 × 114 =
20. 20.974 × 977 =
21. 21.7 × 6 =
22. 22.985 × 981 =
23. 23.13 × 9 =
24. 24.963 × 969 =
25. 25.103 × 87 =
26. 26.101 × 96 =
27. 27.1010 × 976 =
28. 28.1004 × 1031 =
29. 29.104 × 101 =
30. 30.98 × 95 =
31. 31.104 × 109 =
32. 32.110 × 110 =
33. 33.13 × 11 =
34. 34.1025 × 1009 =
35. 35.995 × 966 =
36. 36.1033 × 986 =
37. 37.1019 × 1027 =
38. 38.11 × 9 =
39. 39.998 × 960 =
40. 40.7 × 8 =

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