Adding and subtracting

This task is about using one method to solve story problems.
a) Read the story problems and then finish the equations.
  
  i)
Jane planted 28 carrot seeds and 14 cabbage seeds. Finish the equation to show how many seeds Jane planted altogether.
 
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  ii)
Mary had 74 stickers and she gave 46 to her brother. Finish the equation to show how many stickers Mary had left.
 
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b)
Here is an equation.
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Make-up a story problem to go with this equation.