Question

Explain how you could use a number line to show that -4 + 3 and 3 + (-4) have the same value

Answer 1

 -4        -3           -2             -1           0              1            2              3
I______I_______I_______I_______I_______I_______I_______I
 
* start here, and ADD NEGATIVE 3... you go to 1
                         
                                                                                                      * start here, SUBTRACT 4    you go to -1

in other words adding a negative is the same as subtracting a postitve