Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 143 · 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 × 97 =
2. 2.101 × 115 =
3. 3.111 × 85 =
4. 4.11 × 8 =
5. 5.13 × 11 =
6. 6.9 × 7 =
7. 7.93 × 97 =
8. 8.106 × 91 =
9. 9.1016 × 1040 =
10. 10.1001 × 1037 =
11. 11.8 × 8 =
12. 12.87 × 90 =
13. 13.88 × 87 =
14. 14.94 × 99 =
15. 15.103 × 115 =
16. 16.104 × 102 =
17. 17.1040 × 1001 =
18. 18.113 × 103 =
19. 19.13 × 8 =
20. 20.1010 × 970 =
21. 21.12 × 13 =
22. 22.110 × 96 =
23. 23.8 × 9 =
24. 24.114 × 87 =
25. 25.103 × 95 =
26. 26.998 × 960 =
27. 27.11 × 6 =
28. 28.105 × 102 =
29. 29.104 × 99 =
30. 30.1030 × 1005 =
31. 31.7 × 9 =
32. 32.105 × 98 =
33. 33.14 × 6 =
34. 34.967 × 993 =
35. 35.89 × 93 =
36. 36.12 × 9 =
37. 37.9 × 9 =
38. 38.11 × 7 =
39. 39.1019 × 1003 =
40. 40.11 × 9 =

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