15−(−5)+1?1
\( 15-(-5)+1?1 \)
\( 2+(-4)+(-4)\text{?}6 \)
\( (-6)+(-7)+13\text{?}0 \)
\( 5+(-4)+(-2)\text{?}0 \)
\( (-12)+(-2)+4\text{?}-15 \)
>
<
<
>
\( (-3)+(-4)+(-7)\text{?}-15 \)
\( (-4)+2+(-3)\text{?}5 \)
\( -2-(-2)+3?4-(-2) \)
\( 13-(-3)+(-4)?12-(-2)-2 \)
\( 10-(-2)-3?4-(-4) \)
>
<
<
>
\( -3+(-3)+(-3)?3+3+3 \)
\( -5-5-5-5?5-15 \)
<
<