Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 385 · 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. 1.103 × 105 =
2. 2.102 × 85 =
3. 3.7 × 8 =
4. 4.967 × 970 =
5. 5.110 × 106 =
6. 6.89 × 95 =
7. 7.97 × 88 =
8. 8.107 × 101 =
9. 9.11 × 9 =
10. 10.110 × 109 =
11. 11.13 × 14 =
12. 12.114 × 105 =
13. 13.6 × 6 =
14. 14.11 × 11 =
15. 15.1038 × 1028 =
16. 16.9 × 6 =
17. 17.996 × 963 =
18. 18.13 × 9 =
19. 19.1017 × 1025 =
20. 20.111 × 92 =
21. 21.7 × 9 =
22. 22.95 × 90 =
23. 23.96 × 89 =
24. 24.11 × 13 =
25. 25.107 × 96 =
26. 26.8 × 9 =
27. 27.111 × 110 =
28. 28.99 × 87 =
29. 29.87 × 93 =
30. 30.108 × 113 =
31. 31.113 × 103 =
32. 32.115 × 104 =
33. 33.110 × 91 =
34. 34.7 × 8 =
35. 35.88 × 92 =
36. 36.97 × 98 =
37. 37.7 × 9 =
38. 38.98 × 88 =
39. 39.85 × 94 =
40. 40.103 × 107 =

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