Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 683 · 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. 1.96 × 97 =
2. 2.93 × 89 =
3. 3.14 × 12 =
4. 4.12 × 8 =
5. 5.8 × 8 =
6. 6.92 × 87 =
7. 7.11 × 11 =
8. 8.114 × 112 =
9. 9.112 × 90 =
10. 10.1014 × 1034 =
11. 11.11 × 7 =
12. 12.89 × 97 =
13. 13.111 × 92 =
14. 14.979 × 969 =
15. 15.87 × 85 =
16. 16.114 × 95 =
17. 17.11 × 11 =
18. 18.101 × 95 =
19. 19.14 × 12 =
20. 20.1002 × 1001 =
21. 21.9 × 6 =
22. 22.98 × 93 =
23. 23.95 × 88 =
24. 24.11 × 7 =
25. 25.11 × 13 =
26. 26.93 × 89 =
27. 27.966 × 963 =
28. 28.13 × 11 =
29. 29.96 × 87 =
30. 30.8 × 8 =
31. 31.12 × 11 =
32. 32.115 × 99 =
33. 33.9 × 8 =
34. 34.11 × 9 =
35. 35.86 × 99 =
36. 36.13 × 12 =
37. 37.9 × 7 =
38. 38.7 × 9 =
39. 39.115 × 95 =
40. 40.104 × 90 =

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