Page 69 - ICSE Math 2
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3.  Write the addi  on facts for the following. One has been done for you.


                           (a)  7 – 4 = 3                     3 + 4 = 7                      4 + 3 = 7


                           (b)  9 – 2 = 7


                           (c)  8 – 3 = 5



                           (d)  6 – 1 = 5



                                                               Brainwork

                         Fill in the boxes.

                           (a)  13 – 0 =            (b)  14 + 0 =        = 0 + 14         (c)  9 – 9 =




                    Subtracting 2-Digit Numbers (without borrowing)


                    To subtract a 2-digit number from another 2-digit number, fi rst subtract the
                    ones and then the tens.

                    Let’s subtract 25 from 67.


                                        T     O                                                 T      O

                                        6     7                                                 6      7

                                  –     2     5                                           –     2      5


                                              2                                                 4      2


                         Step 1: Subtract the ones.                              Step 2: Subtract the tens.
                                   7 – 5 = 2                                               6 – 2 = 4

                                                                                           So, 67–25 = 42.

                      4.  Subtract the given numbers.

                                       T     O                         T      O                         T     O
                           (a)                             (b)                              (c)
                                       6     7                         8      4                        5      6


                                 –     4     5                   –     2      4                   –    3      0






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