Underbrace with Extra Space
Extra space added between numbers (hspace) and the brace below (vphantom).
by AOLeng Learning · /s/aab
\begin{gathered}
5 \underbrace{\hspace{30px}\vphantom{10px}}_{+2} 7
\underbrace{\hspace{30px}\vphantom{10px}}_{+3} 10
\underbrace{\hspace{30px}\vphantom{10px}}_{+4} 14
\underbrace{\hspace{30px}\vphantom{10px}}_{+5} 19
\underbrace{\hspace{30px}\vphantom{10px}}_{+6} ?
\\[1cm]
\text{Then the answer is } 19+6=25.
\\[2cm]
5 \underbrace{}_{+2} 7
\underbrace{\hspace{30px}\vphantom{10px}}_{+3} 10
\underbrace{\hspace{30px}\vphantom{10px}}_{+4} 14
\underbrace{\hspace{30px}\vphantom{10px}}_{+5} 19
\underbrace{\hspace{30px}\vphantom{10px}}_{+6} ?
\\[1cm]
\text{Then the answer is } 19+6=25.
\end{gathered}