Rewrite 7 − 8 using the additive inverse and display the new expression on a number line.
7 + (−8)
A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 7. A red arrow begins at 7 and ends at negative 1.
7 + 8
A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15.
7 − (−8)
A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15.
8 − 7
A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 8. A red arrow begins at 8 and ends at 1.
A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 7. A red arrow begins at 7 and ends at negative 1.
