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Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 820 · 40 sums
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.98 × 90 =
  2. 2.102 × 89 =
  3. 3.113 × 91 =
  4. 4.995 × 965 =
  5. 5.6 × 9 =
  6. 6.97 × 85 =
  7. 7.9 × 9 =
  8. 8.1032 × 1038 =
  9. 9.85 × 87 =
  10. 10.102 × 108 =
  11. 11.977 × 998 =
  12. 12.6 × 8 =
  13. 13.111 × 98 =
  14. 14.106 × 107 =
  15. 15.103 × 96 =
  16. 16.102 × 111 =
  17. 17.99 × 88 =
  18. 18.89 × 86 =
  19. 19.13 × 14 =
  20. 20.1033 × 1022 =
  21. 21.97 × 95 =
  22. 22.1038 × 1026 =
  23. 23.104 × 105 =
  24. 24.1035 × 986 =
  25. 25.998 × 980 =
  26. 26.8 × 9 =
  27. 27.98 × 91 =
  28. 28.1012 × 967 =
  29. 29.91 × 93 =
  30. 30.967 × 988 =
  31. 31.109 × 106 =
  32. 32.104 × 88 =
  33. 33.7 × 8 =
  34. 34.11 × 12 =
  35. 35.999 × 988 =
  36. 36.88 × 90 =
  37. 37.999 × 998 =
  38. 38.14 × 7 =
  39. 39.112 × 115 =
  40. 40.13 × 11 =

Answer key

  1. 8820
  2. 9078
  3. 10283
  4. 960175
  5. 54
  6. 8245
  7. 81
  8. 1071216
  9. 7395
  10. 11016
  11. 975046
  12. 48
  13. 10878
  14. 11342
  15. 9888
  16. 11322
  17. 8712
  18. 7654
  19. 182
  20. 1055726
  21. 9215
  22. 1064988
  23. 10920
  24. 1020510
  25. 978040
  26. 72
  27. 8918
  28. 978604
  29. 8463
  30. 955396
  31. 11554
  32. 9152
  33. 56
  34. 132
  35. 987012
  36. 7920
  37. 997002
  38. 98
  39. 12880
  40. 143

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