Answer
$10+(-3)=7$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \curvearrowleft\curvearrowleft\curvearrowleft$
$\overrightarrow{\,0\ \ 1\ \ 2\ \ 3\ \ 4\ \ 5\ \ 6\ \ 7\ \ 8\ \ 9\ \ 1\ \ 1\ \ \ }$
$\,\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 0\ \ 1\ \ \ $
Work Step by Step
To add -3, move 3 units left on the number line.