Arithmetic Grade Three

Lesson twenty-four: Adding to Subtract

Adding to Subtract

Look at each pair of problems:



	11 - 5 = __	-->	5 + __ = 11	-->  ANSWER: 6
	
  

	4 - 3 = __	-->	3 + __ = 4	-->  ANSWER: 1

  

	7 - 2 = __	-->	2 + __ = 7	-->  ANSWER: 5

You can rewrite a subtraction problem as a missing number addition problem.