Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 107 · 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 × 7 =
2. 2.11 × 11 =
3. 3.89 × 99 =
4. 4.115 × 115 =
5. 5.102 × 95 =
6. 6.99 × 88 =
7. 7.111 × 102 =
8. 8.86 × 94 =
9. 9.114 × 98 =
10. 10.98 × 94 =
11. 11.89 × 93 =
12. 12.103 × 102 =
13. 13.13 × 12 =
14. 14.92 × 98 =
15. 15.110 × 108 =
16. 16.12 × 12 =
17. 17.107 × 96 =
18. 18.96 × 95 =
19. 19.102 × 104 =
20. 20.975 × 988 =
21. 21.115 × 115 =
22. 22.111 × 87 =
23. 23.994 × 973 =
24. 24.1011 × 1004 =
25. 25.114 × 107 =
26. 26.87 × 99 =
27. 27.960 × 963 =
28. 28.103 × 92 =
29. 29.6 × 6 =
30. 30.998 × 984 =
31. 31.1027 × 995 =
32. 32.90 × 89 =
33. 33.104 × 114 =
34. 34.94 × 96 =
35. 35.104 × 97 =
36. 36.964 × 996 =
37. 37.90 × 98 =
38. 38.12 × 9 =
39. 39.102 × 99 =
40. 40.963 × 966 =

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