Arithmetic Grade Three

Lesson One hundred and eight: Two Column Regrouping


Inspect this multiplication problem:

     24
    x 7 
   -----

Here are the steps to solve this problem:
                                                                                
    STEP ONE: MULTIPLY ONES COLUMN.
                                                                                
        4 x 7 = 28
                                                                                
    STEP TWO: PLACE ONES VALUE IN ONES COLUMN AND CARRY TENS.
                                                                                
          2
          24
         x 7
        -----
           8
                                                                                
    STEP THREE: MULTIPLY TENS AND ADD CARRIED VALUE.
                                                                                
        2 x 7 + 2 = 16
                                                                                
    STEP FOUR: PLACE VALUE IN HUNDREDS AND TENS COLUMN.
                                                                                
          1
          24
         x 7
        -----
         168
                                                                                

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