Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 841 · 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 × 97 =
2. 2.114 × 85 =
3. 3.98 × 86 =
4. 4.13 × 9 =
5. 5.7 × 9 =
6. 6.113 × 103 =
7. 7.14 × 8 =
8. 8.966 × 977 =
9. 9.12 × 13 =
10. 10.1001 × 1027 =
11. 11.89 × 89 =
12. 12.112 × 90 =
13. 13.14 × 11 =
14. 14.92 × 98 =
15. 15.1038 × 1026 =
16. 16.110 × 103 =
17. 17.104 × 106 =
18. 18.8 × 9 =
19. 19.12 × 6 =
20. 20.101 × 105 =
21. 21.1018 × 1025 =
22. 22.109 × 115 =
23. 23.1028 × 962 =
24. 24.12 × 13 =
25. 25.8 × 9 =
26. 26.13 × 12 =
27. 27.106 × 99 =
28. 28.6 × 6 =
29. 29.11 × 14 =
30. 30.12 × 11 =
31. 31.1001 × 987 =
32. 32.1019 × 1009 =
33. 33.101 × 105 =
34. 34.104 × 99 =
35. 35.13 × 8 =
36. 36.999 × 970 =
37. 37.992 × 960 =
38. 38.109 × 113 =
39. 39.86 × 87 =
40. 40.994 × 999 =

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