DIVISION BY ONE DIGIT NUMBER-169a
    _____
 4 ) 22    ESTIMATE BY MULTIPLICATION  4x2=  8
                                       4X5=  20
    __5__                              4X6=  24  TOO BIG  SO 5 IS THE ANS.
 4 ) 22
     20
    ---
      2  WITH A REMAINDER OF 2  ANSWER IS 5 R2



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