Arithmetic Grade Three

Lesson One hundred sixty: The Game of One

Here's an example: 

        1         ?           7
      ----   +  ----   =    ----
        7         7           7

     MISSING NUMERATOR: (6)
Here's another problem for you to think about carefully. 

  Which of the following when added to 1/4 equals 1?

    A. 1/4
    B. 2/4
    C. 3/4
    D. 4/4
  --------

     We know that 1/4 + 3/4 = 1. So, the answer must be C.

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