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Last Digits Add to 10 Worksheet

Vedic maths trick 22: Last digits adding to 10 · Set 90 · 40 sums
TalentJR

The trick (Antyayoreva): Check: same front part, last digits add up to 10. Left part: front part × the next number. Right part: multiply the last digits — always write it with 2 digits.

NameDateTime takenScore ___ / 40
  1. 1.99 × 91 =
  2. 2.41 × 49 =
  3. 3.49 × 41 =
  4. 4.363 × 367 =
  5. 5.405 × 405 =
  6. 6.54 × 56 =
  7. 7.175 × 175 =
  8. 8.22 × 28 =
  9. 9.75 × 75 =
  10. 10.13 × 17 =
  11. 11.61 × 69 =
  12. 12.29 × 21 =
  13. 13.55 × 55 =
  14. 14.408 × 402 =
  15. 15.86 × 84 =
  16. 16.42 × 48 =
  17. 17.78 × 72 =
  18. 18.19 × 11 =
  19. 19.18 × 12 =
  20. 20.12 × 18 =
  21. 21.23 × 27 =
  22. 22.37 × 33 =
  23. 23.273 × 277 =
  24. 24.23 × 27 =
  25. 25.25 × 25 =
  26. 26.223 × 227 =
  27. 27.191 × 199 =
  28. 28.73 × 77 =
  29. 29.93 × 97 =
  30. 30.143 × 147 =
  31. 31.14 × 16 =
  32. 32.144 × 146 =
  33. 33.241 × 249 =
  34. 34.68 × 62 =
  35. 35.358 × 352 =
  36. 36.217 × 213 =
  37. 37.407 × 403 =
  38. 38.47 × 43 =
  39. 39.94 × 96 =
  40. 40.109 × 101 =

Answer key

  1. 9009
  2. 2009
  3. 2009
  4. 133221
  5. 164025
  6. 3024
  7. 30625
  8. 616
  9. 5625
  10. 221
  11. 4209
  12. 609
  13. 3025
  14. 164016
  15. 7224
  16. 2016
  17. 5616
  18. 209
  19. 216
  20. 216
  21. 621
  22. 1221
  23. 75621
  24. 621
  25. 625
  26. 50621
  27. 38009
  28. 5621
  29. 9021
  30. 21021
  31. 224
  32. 21024
  33. 60009
  34. 4216
  35. 126016
  36. 46221
  37. 164021
  38. 2021
  39. 9024
  40. 11009

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