Hi im vocal welcom to the learning station (SUBTRACTION) if your stuck on problems like                         67                      - 15 ______________________    Always start at the 10's place because thats just the basic of mathematics so 7-5=2 and 6-1=5 so the answer is 52 now you try practicing and showing your work.                                              TIP When you do your own problem you always have to line it up if not it will be hard to solve and scrambled.                                                                                                       VOCAL TEACHING

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Good job

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