Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 172 · 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. 1.98 × 99 =
2. 2.105 × 113 =
3. 3.101 × 101 =
4. 4.88 × 96 =
5. 5.104 × 87 =
6. 6.1033 × 1005 =
7. 7.1012 × 1001 =
8. 8.12 × 8 =
9. 9.14 × 13 =
10. 10.95 × 96 =
11. 11.982 × 991 =
12. 12.12 × 6 =
13. 13.6 × 7 =
14. 14.99 × 86 =
15. 15.8 × 9 =
16. 16.13 × 8 =
17. 17.1006 × 999 =
18. 18.12 × 6 =
19. 19.12 × 12 =
20. 20.110 × 99 =
21. 21.99 × 95 =
22. 22.103 × 89 =
23. 23.12 × 11 =
24. 24.106 × 85 =
25. 25.112 × 85 =
26. 26.7 × 9 =
27. 27.98 × 92 =
28. 28.90 × 98 =
29. 29.12 × 9 =
30. 30.101 × 108 =
31. 31.966 × 999 =
32. 32.969 × 982 =
33. 33.12 × 9 =
34. 34.1028 × 1005 =
35. 35.101 × 96 =
36. 36.6 × 7 =
37. 37.89 × 97 =
38. 38.996 × 979 =
39. 39.113 × 86 =
40. 40.86 × 98 =

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