Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 648 · 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. 1.106 × 99 =
2. 2.13 × 7 =
3. 3.102 × 115 =
4. 4.6 × 6 =
5. 5.1025 × 1028 =
6. 6.110 × 97 =
7. 7.89 × 95 =
8. 8.7 × 9 =
9. 9.13 × 12 =
10. 10.103 × 96 =
11. 11.86 × 98 =
12. 12.93 × 94 =
13. 13.104 × 104 =
14. 14.11 × 11 =
15. 15.105 × 97 =
16. 16.1001 × 1008 =
17. 17.113 × 89 =
18. 18.104 × 102 =
19. 19.988 × 979 =
20. 20.96 × 94 =
21. 21.8 × 7 =
22. 22.13 × 7 =
23. 23.11 × 13 =
24. 24.1019 × 997 =
25. 25.93 × 90 =
26. 26.14 × 7 =
27. 27.13 × 14 =
28. 28.13 × 13 =
29. 29.14 × 14 =
30. 30.94 × 98 =
31. 31.110 × 95 =
32. 32.95 × 94 =
33. 33.92 × 99 =
34. 34.1017 × 974 =
35. 35.107 × 86 =
36. 36.1003 × 1019 =
37. 37.110 × 93 =
38. 38.7 × 7 =
39. 39.95 × 89 =
40. 40.96 × 93 =

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