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Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 945 · 40 questions
TalentJR

The trick (Split and double): Split the number into tens and ones: 37 = 30 + 7. Double each part (30 → 60, 7 → 14) — or halve each part. Add the two answers: 60 + 14 = 74.

NameDateTime takenScore ___ / 40
  1. 1.Half of 32 =
  2. 2.Half of 22 =
  3. 3.Double 13 =
  4. 4.Half of 142 =
  5. 5.Double 44 =
  6. 6.Half of 132 =
  7. 7.Double 16 =
  8. 8.Half of 78 =
  9. 9.Half of 162 =
  10. 10.Half of 18 =
  11. 11.Double 33 =
  12. 12.Half of 156 =
  13. 13.Half of 92 =
  14. 14.Half of 112 =
  15. 15.Double 91 =
  16. 16.Double 95 =
  17. 17.Double 62 =
  18. 18.Double 96 =
  19. 19.Double 48 =
  20. 20.Half of 182 =
  21. 21.Double 53 =
  22. 22.Double 51 =
  23. 23.Double 17 =
  24. 24.Double 21 =
  25. 25.Double 58 =
  26. 26.Double 65 =
  27. 27.Half of 126 =
  28. 28.Double 98 =
  29. 29.Double 74 =
  30. 30.Double 41 =
  31. 31.Double 22 =
  32. 32.Half of 118 =
  33. 33.Double 69 =
  34. 34.Half of 52 =
  35. 35.Double 88 =
  36. 36.Double 86 =
  37. 37.Half of 62 =
  38. 38.Double 97 =
  39. 39.Double 25 =
  40. 40.Double 29 =

Answer key

  1. 16
  2. 11
  3. 26
  4. 71
  5. 88
  6. 66
  7. 32
  8. 39
  9. 81
  10. 9
  11. 66
  12. 78
  13. 46
  14. 56
  15. 182
  16. 190
  17. 124
  18. 192
  19. 96
  20. 91
  21. 106
  22. 102
  23. 34
  24. 42
  25. 116
  26. 130
  27. 63
  28. 196
  29. 148
  30. 82
  31. 44
  32. 59
  33. 138
  34. 26
  35. 176
  36. 172
  37. 31
  38. 194
  39. 50
  40. 58

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