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Maths
Efficient strategies for adding and subtracting mixed numbers (crossing a whole)

Starter quiz

  • {8} \over {12} − {6} \over {12} =
    • {14} \over {12}
    • {14} \over {24}
    • {2} \over {0}
    • {2} \over {12}  ✓
    • {1} \over {12}
  • Match the equations to the correct difference.
    • {7} \over {4} − {1} \over {4}
      ⇔
      {6} \over {4} ✓
    • {9} \over {4} − {2} \over {4}
      ⇔
      {7} \over {4}  ✓
    • {9} \over {4} − {7} \over {4}
      ⇔
      {2} \over {4}  ✓
    • {14} \over {4} − {2} \over {4}
      ⇔
      {12} \over {4}  ✓
    • {6} \over {4} − {3} \over {4}
      ⇔
      {3} \over {4} ✓
  • Match the improper fractions to their equivalent mixed number.
    • {11} \over {10}
      ⇔
      1{{1} \over {10}} ✓
    • {18} \over {10}
      ⇔
      1{{8} \over {10}} ✓
    • {29} \over {10}
      ⇔
      2{{9} \over {10}} ✓
    • {34} \over {10}
      ⇔
      3{{4} \over {10}} ✓
    • {46} \over {10}
      ⇔
      4{{6} \over {10}} ✓
  • Match the mixed number to their equivalent improper fraction.
    • 2{{4} \over {10}}
      ⇔
      {24} \over {10} ✓
    • 3{{4} \over {10}}
      ⇔
      {34} \over {10} ✓
    • 1{{6} \over {10}}
      ⇔
      {16} \over {10} ✓
    • 2{{1} \over {10}}
      ⇔
      {21} \over {10} ✓
    • 5{{3} \over {10}}
      ⇔
      {53} \over {10} ✓
  • Calculate this. 6{{1} \over {8}} − {3} \over {8} =
    • 6{6} \over {8}
    • 5{{7} \over {8}}
    • 5{{6} \over {8}}  ✓
    • 6{{4} \over {8}}
    • 6{{6} \over {8}}
  • Match the equation to its difference.
    • 2{{7} \over {9}}
      ⇔
      3{{1} \over {9}} − {3} \over {9} ✓
    • 1{{5} \over {9}}
      ⇔
      2{{2} \over {9}} − {6} \over {9} ✓
    • 1{{6} \over {9}}
      ⇔
      2{{1} \over {9}} − {4} \over {9} ✓
    • 3{{7} \over {9}}
      ⇔
      4{{3} \over {9}} − {5} \over {9} ✓
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