Name________________________

 

SUBTRACTING DECIMALS #11--KEY

 

 

Directions:  Find the difference of the following decimals by rewriting the problem with your decimal points lined up.  If necessary, use zeroes to hold your place values.

 

Examples:         2.35 - 0.7         becomes           2.35                 and       3.054 - 2.1       becomes           3.054  

                                                                    -   0.70                                                                         -   2.100

                                                                        1.65                                                                             0.954

                                   

 

                       

          Original Problem        Rewritten Problem             Original Problem                      Rewritten Problem

 

1)         4.15 - 0.2                                 4.15                                   2)      3.110 - 1.2                            3.110

                                                       -    0.20                                                                                    -    1.200

                                                            3.95                                                                                         0.910

 

 

3)         5.25 - 0.4                                 5.25                                   4)      6.011 - 3.1                            6.011

                                                       -    0.40                                                                                    -    3.100

4.85                                                                                         2.911

 

 

5)         5.75- 2.9                                  5.75                                   6)      8.24 - 1.4                              8.24

                                                       -    2.90                                                                                    -    1.40

2.85                                                                                         6.84

 

 

7)         6.39 - 0.8                                 6.39                                   8)      8.017 - 2.2                            8.017

                                                       -    0.80                                                                                    -    2.200

5.50                                                                                         5.810

 

 

9)         5.0 - 2.3                                   5.0                                     10)    6.453 - 0.2                            6.453

                                                       -    2.3                                                                                      -    0.200

2.7                                                                                           6.253

 

 

11)       3 - 2.100                                  3.000                                 12)    7.007 - 5.6                            7.007

                                                       -    2.100                                                                                  -    5.600

                                                            0.900                                                                                       1.477