# CHAPTER 1                            LESSON 6

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"SUBTRACTING WITH ONE RENAMING"

A.  Find 656 - 539.

 H U N D R E D S T E N S O N E S

4   16          You need more ones.  Rename to get 10 more ones.

6    5    6

-     5    3    9             5 tens 6 ones = 4 tens 16 ones!

4   16

6    5    6

-     5    3    9

First, let's label a subtraction problem.

656         Minuend
-  539         Subtrahend

117         Difference

To  check your subtraction problem, take the difference (answer) and add it to the subtrahend (the number you subtracted from the problem) and that should equal the minuend (the top number)

-   539                           +  539 Subtrahend   (The name you were subtracting)

117                               656

If you answer equals the Minuend you are RIGHT J

B.  Find 607 - 375.

5 10

607  Subtract the ones.  Rename to get 10 more.

-   375  Subtract the tens.   Subtract the hundreds.

232

Check

232

+  375

607

C.  Find 9839 - 915.

8 18

9839

-   915

8924

Check

8924

+   915

9839

NOW YOU TRY J

 1.    68     -  29 2.    72      - 58 3.    56      - 29 4.    97     -  38 5.    48     -  19 6.    24     -  19 7.    32     -  19 8.    53     -  44 9.    60     -  13 10.    46       -  28 11.    88       -  39 12.    90       -  57 13.    248        - 229 14.    539       -  278 15.    362       -    49 16.    674       -    67 17.     248        -  229 18.    247        - 119 19.    508        - 272 20.     607        -  425 21.    5407       -    182 22.    3608        -   346 23.    9216        -   185 24.    2780        - 2329 25.     6093        -  5682

26.  Naomi has 83 seashells.  Paul has 69 shells.  How many more shells has Naomi than Paul?

27.  There are 265 firemen in Center City.  Peterville has 137 firemen.  How many more firemen are there in Center City than in Peterville?