Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 337 · 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. 1.85 × 94 =
2. 2.101 × 108 =
3. 3.90 × 89 =
4. 4.9 × 9 =
5. 5.102 × 110 =
6. 6.9 × 6 =
7. 7.92 × 99 =
8. 8.93 × 85 =
9. 9.105 × 102 =
10. 10.9 × 8 =
11. 11.1004 × 1020 =
12. 12.102 × 91 =
13. 13.8 × 6 =
14. 14.103 × 108 =
15. 15.997 × 997 =
16. 16.98 × 93 =
17. 17.1001 × 1012 =
18. 18.11 × 8 =
19. 19.1001 × 987 =
20. 20.6 × 9 =
21. 21.103 × 104 =
22. 22.92 × 94 =
23. 23.104 × 102 =
24. 24.109 × 89 =
25. 25.12 × 8 =
26. 26.962 × 966 =
27. 27.981 × 961 =
28. 28.96 × 97 =
29. 29.88 × 97 =
30. 30.1006 × 1017 =
31. 31.101 × 108 =
32. 32.11 × 8 =
33. 33.115 × 97 =
34. 34.93 × 88 =
35. 35.1020 × 1029 =
36. 36.7 × 8 =
37. 37.98 × 99 =
38. 38.11 × 14 =
39. 39.1033 × 1035 =
40. 40.1031 × 1002 =

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