Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 254 · 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. 1.9 × 9 =
2. 2.87 × 92 =
3. 3.86 × 97 =
4. 4.111 × 101 =
5. 5.1004 × 1037 =
6. 6.85 × 92 =
7. 7.11 × 12 =
8. 8.1025 × 1030 =
9. 9.113 × 113 =
10. 10.104 × 106 =
11. 11.966 × 994 =
12. 12.13 × 12 =
13. 13.113 × 104 =
14. 14.89 × 92 =
15. 15.115 × 94 =
16. 16.115 × 110 =
17. 17.14 × 6 =
18. 18.14 × 11 =
19. 19.6 × 8 =
20. 20.99 × 99 =
21. 21.92 × 85 =
22. 22.8 × 9 =
23. 23.103 × 103 =
24. 24.91 × 86 =
25. 25.111 × 115 =
26. 26.87 × 86 =
27. 27.1038 × 1003 =
28. 28.102 × 102 =
29. 29.91 × 95 =
30. 30.11 × 8 =
31. 31.14 × 6 =
32. 32.94 × 88 =
33. 33.90 × 98 =
34. 34.1007 × 973 =
35. 35.95 × 85 =
36. 36.11 × 13 =
37. 37.9 × 6 =
38. 38.968 × 964 =
39. 39.9 × 9 =
40. 40.88 × 88 =

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