Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 935 · 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. 1.104 × 99 =
2. 2.11 × 13 =
3. 3.8 × 6 =
4. 4.99 × 93 =
5. 5.9 × 7 =
6. 6.88 × 99 =
7. 7.112 × 89 =
8. 8.1026 × 1030 =
9. 9.13 × 13 =
10. 10.1019 × 1014 =
11. 11.6 × 6 =
12. 12.88 × 97 =
13. 13.1019 × 1038 =
14. 14.102 × 106 =
15. 15.89 × 88 =
16. 16.110 × 115 =
17. 17.87 × 95 =
18. 18.1009 × 966 =
19. 19.107 × 111 =
20. 20.112 × 90 =
21. 21.93 × 95 =
22. 22.1006 × 1036 =
23. 23.98 × 85 =
24. 24.12 × 12 =
25. 25.970 × 977 =
26. 26.1008 × 993 =
27. 27.109 × 106 =
28. 28.1008 × 1012 =
29. 29.115 × 113 =
30. 30.1039 × 1029 =
31. 31.88 × 96 =
32. 32.9 × 8 =
33. 33.103 × 113 =
34. 34.11 × 13 =
35. 35.1033 × 1029 =
36. 36.12 × 13 =
37. 37.108 × 105 =
38. 38.11 × 13 =
39. 39.109 × 85 =
40. 40.9 × 6 =

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