Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 643 · 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 × 112 =
2. 2.12 × 8 =
3. 3.6 × 6 =
4. 4.12 × 11 =
5. 5.94 × 92 =
6. 6.102 × 115 =
7. 7.102 × 95 =
8. 8.101 × 96 =
9. 9.7 × 6 =
10. 10.99 × 95 =
11. 11.991 × 980 =
12. 12.86 × 94 =
13. 13.110 × 107 =
14. 14.11 × 7 =
15. 15.115 × 102 =
16. 16.87 × 88 =
17. 17.14 × 8 =
18. 18.980 × 999 =
19. 19.85 × 96 =
20. 20.14 × 6 =
21. 21.102 × 85 =
22. 22.112 × 104 =
23. 23.964 × 963 =
24. 24.115 × 111 =
25. 25.1029 × 1024 =
26. 26.101 × 108 =
27. 27.103 × 108 =
28. 28.97 × 88 =
29. 29.11 × 9 =
30. 30.96 × 85 =
31. 31.98 × 94 =
32. 32.988 × 988 =
33. 33.85 × 97 =
34. 34.87 × 92 =
35. 35.999 × 970 =
36. 36.7 × 9 =
37. 37.6 × 7 =
38. 38.90 × 95 =
39. 39.93 × 97 =
40. 40.108 × 85 =

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