Cars and Trucks Introduction to the Subtraction of Positive and Negative Integers

1.

When 2 NEGATIVE SIGNS are together (-) (-), the first sign is turned upright and we call it a CHANGING SIGN and the 2 signs are rearranged form a POSITIVE SIGN (+). The first NEGATIVE SIGN is turned to look like this | called a CHANGING SIGN. With the second NEGATIVE SIGN the CHANGING SIGN makes a POSITIVE SIGN (+). Example: 2 – (-1) becomes 2 + 1 = 3

 

[QUESTION 21]     2 - (- 1) Becomes

                                    2  +  1  =  3

Question 1 of 10

2.

[QUESTION    22]  1 - (- 3) Becomes

                                   1 + 3 = 4

Question 2 of 10

3.

[QUESTION   23] - 3 - (- 4) Becomes

                                - 3 + 4 = 1

Question 3 of 10

4.

[QUESTION    24] - 4 - (- 2)  Becomes

                                  - 4  +  2 = - 2

Question 4 of 10

5.

[QUESTION   25]   -  5  -  (- 5)  Becomes

                                    - 5   +   5   =   0

Question 5 of 10

6.

[QUESTION    26] - 8 - (- 3) Becomes

                                 - 8  +  3  =  -  5

 

Question 6 of 10

7.

[QUESTION   27] - 6 - (- 2) Becomes

                                 - 6  +  2   =  -  4

 

Question 7 of 10

8.

[QUESTION   28]   7 - (- 2) Becomes

                                   7  +   2   =  9

 

Question 8 of 10

9.

[QUESTION    29] - 2 - (- 4) Becomes

                                 - 2  +  4   =   2

 

Question 9 of 10

10.

[QUESTION    30] - 7 - (- 4) Becomes

                                 - 7  +  4  =   -  3

 

Question 10 of 10


 

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