Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 344 · 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. 1.97 × 97 =
2. 2.95 × 92 =
3. 3.102 × 90 =
4. 4.1023 × 987 =
5. 5.99 × 93 =
6. 6.85 × 86 =
7. 7.9 × 8 =
8. 8.1010 × 964 =
9. 9.1012 × 1017 =
10. 10.9 × 8 =
11. 11.8 × 9 =
12. 12.104 × 102 =
13. 13.964 × 991 =
14. 14.86 × 87 =
15. 15.106 × 104 =
16. 16.11 × 7 =
17. 17.1030 × 966 =
18. 18.102 × 103 =
19. 19.112 × 105 =
20. 20.994 × 974 =
21. 21.985 × 997 =
22. 22.110 × 110 =
23. 23.1018 × 1006 =
24. 24.1029 × 972 =
25. 25.1029 × 960 =
26. 26.114 × 103 =
27. 27.8 × 7 =
28. 28.13 × 12 =
29. 29.107 × 98 =
30. 30.98 × 85 =
31. 31.12 × 14 =
32. 32.94 × 85 =
33. 33.11 × 13 =
34. 34.14 × 14 =
35. 35.1016 × 981 =
36. 36.12 × 11 =
37. 37.11 × 7 =
38. 38.110 × 96 =
39. 39.1003 × 1032 =
40. 40.1010 × 1024 =

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