Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 79 · 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. 1.9 × 6 =
2. 2.88 × 95 =
3. 3.105 × 113 =
4. 4.7 × 8 =
5. 5.98 × 93 =
6. 6.108 × 98 =
7. 7.96 × 93 =
8. 8.11 × 11 =
9. 9.14 × 12 =
10. 10.997 × 964 =
11. 11.9 × 9 =
12. 12.1038 × 1039 =
13. 13.115 × 107 =
14. 14.11 × 14 =
15. 15.92 × 98 =
16. 16.93 × 95 =
17. 17.9 × 9 =
18. 18.104 × 108 =
19. 19.14 × 9 =
20. 20.103 × 114 =
21. 21.1009 × 1038 =
22. 22.8 × 6 =
23. 23.96 × 93 =
24. 24.108 × 92 =
25. 25.12 × 14 =
26. 26.1020 × 989 =
27. 27.108 × 108 =
28. 28.1028 × 971 =
29. 29.102 × 107 =
30. 30.114 × 102 =
31. 31.103 × 112 =
32. 32.12 × 8 =
33. 33.95 × 94 =
34. 34.90 × 90 =
35. 35.102 × 104 =
36. 36.9 × 7 =
37. 37.103 × 103 =
38. 38.11 × 9 =
39. 39.96 × 93 =
40. 40.12 × 13 =

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