Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 479 · 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 × 98 =
2. 2.1006 × 1009 =
3. 3.1019 × 1011 =
4. 4.1039 × 1014 =
5. 5.94 × 96 =
6. 6.103 × 85 =
7. 7.975 × 988 =
8. 8.112 × 98 =
9. 9.96 × 96 =
10. 10.12 × 7 =
11. 11.114 × 99 =
12. 12.86 × 96 =
13. 13.99 × 96 =
14. 14.108 × 115 =
15. 15.982 × 993 =
16. 16.111 × 112 =
17. 17.12 × 6 =
18. 18.105 × 104 =
19. 19.13 × 9 =
20. 20.8 × 6 =
21. 21.7 × 9 =
22. 22.95 × 85 =
23. 23.111 × 93 =
24. 24.981 × 989 =
25. 25.109 × 90 =
26. 26.1036 × 975 =
27. 27.99 × 97 =
28. 28.967 × 979 =
29. 29.989 × 994 =
30. 30.9 × 6 =
31. 31.966 × 971 =
32. 32.13 × 8 =
33. 33.9 × 7 =
34. 34.962 × 972 =
35. 35.983 × 996 =
36. 36.102 × 113 =
37. 37.114 × 94 =
38. 38.996 × 989 =
39. 39.962 × 985 =
40. 40.104 × 109 =

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