Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 649 · 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. 1.113 × 110 =
2. 2.11 × 14 =
3. 3.14 × 12 =
4. 4.112 × 104 =
5. 5.1014 × 967 =
6. 6.13 × 13 =
7. 7.104 × 85 =
8. 8.9 × 9 =
9. 9.85 × 95 =
10. 10.14 × 14 =
11. 11.8 × 6 =
12. 12.112 × 101 =
13. 13.1002 × 968 =
14. 14.109 × 108 =
15. 15.988 × 970 =
16. 16.106 × 105 =
17. 17.1011 × 1019 =
18. 18.108 × 90 =
19. 19.99 × 89 =
20. 20.114 × 109 =
21. 21.8 × 7 =
22. 22.976 × 982 =
23. 23.85 × 99 =
24. 24.8 × 7 =
25. 25.106 × 115 =
26. 26.89 × 90 =
27. 27.996 × 986 =
28. 28.1004 × 1031 =
29. 29.1031 × 1016 =
30. 30.14 × 12 =
31. 31.97 × 94 =
32. 32.113 × 114 =
33. 33.7 × 8 =
34. 34.9 × 9 =
35. 35.6 × 8 =
36. 36.102 × 95 =
37. 37.8 × 7 =
38. 38.12 × 14 =
39. 39.12 × 14 =
40. 40.110 × 93 =

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