Page 36 - Revised Maths Wisdom Class - 2
P. 36

34                                                                                                 MATHS


        Subtraction

        Subtraction means taking  away a smaller number from a bigger  number. The

        bigger number is called the  minuend and the smaller  number is called  the
        subtrahend.  The  answer  of  subtraction  is  known  as  difference.  Subtraction  is

        also represented as – (minus) sign.
        When we subtract 2-digit numbers, we subtract the ones first and then the tens.


        Let us subtract 12 from 36.

        Step 1:         Write bigger number above the smaller number.


        Step 2:         Subtract ones.                                                 Tens  Ones    Minuend
                                                                                         3
                                                                                              6
                      6 ones – 2 ones = 4 ones
                      Write 4 in ones column.                                          – 1    2      Subtrahend
                                                                                         2
                                                                                              4
                                                                                                     Difference
        Step 3:         Subtract tens.
                      3 tens – 1 ten = 2 tens
                      Write 2 in tens column.






                R
                R Remember!emember!emember!

                 ›   In subtraction, we always write greater number above the smaller number.




              Subtract the following.




             Tens  Ones                    Tens  Ones                    Tens  Ones                   Tens  Ones
              8      8                      2      3                      2     6                      5      7

           – 6       1                   – 1       2                   – 2      3                   – 4       3








             Tens  Ones                    Tens  Ones                    Tens  Ones                   Tens  Ones
              9      8                      8      6                      7     9                      5      4


           – 7       4                   – 2       3                   – 4      5                   – 1       0
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