Solution:
Given:
[tex]\begin{gathered} 5 \\ +15 \\ 0 \end{gathered}[/tex]An integer is a whole number (not a fractional number) that can be positive, negative, or zero.
Writing each number as a sum of integers in three different ways,
[tex]\begin{gathered} 5=0+5 \\ 5=3+2 \\ 5=-2+7 \\ \\ \\ +15=11+4 \\ +15=8+7 \\ +15=1+14 \\ \\ \\ 0=-2+2 \\ 0=-5+5 \\ 0=-1+1 \end{gathered}[/tex]