Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 763 · 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. 1.107 × 89 =
2. 2.104 × 106 =
3. 3.991 × 982 =
4. 4.14 × 14 =
5. 5.101 × 90 =
6. 6.104 × 86 =
7. 7.1013 × 983 =
8. 8.11 × 6 =
9. 9.12 × 11 =
10. 10.1028 × 1014 =
11. 11.101 × 109 =
12. 12.13 × 11 =
13. 13.1036 × 1017 =
14. 14.14 × 11 =
15. 15.1005 × 967 =
16. 16.101 × 107 =
17. 17.101 × 86 =
18. 18.98 × 92 =
19. 19.108 × 89 =
20. 20.92 × 89 =
21. 21.85 × 90 =
22. 22.962 × 993 =
23. 23.14 × 12 =
24. 24.105 × 104 =
25. 25.105 × 114 =
26. 26.114 × 106 =
27. 27.8 × 8 =
28. 28.96 × 85 =
29. 29.963 × 986 =
30. 30.114 × 103 =
31. 31.96 × 86 =
32. 32.94 × 92 =
33. 33.1020 × 1030 =
34. 34.1037 × 1024 =
35. 35.95 × 88 =
36. 36.9 × 9 =
37. 37.11 × 12 =
38. 38.105 × 115 =
39. 39.12 × 13 =
40. 40.94 × 86 =

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