\documentclass[leqno, 12pt]{article}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usetikzlibrary {arrows.meta}
\usetikzlibrary{bending}
\usepackage[a4paper, portrait, margin=1cm]{geometry}
\pagestyle{empty}

\def\jumpheight{10}
\def\qgap{\rule[-1pt]{1.0em}{.25pt}}

\def \HeadingAnswers {\section*{\Large Name: \underline{\hspace{8cm}} \hfill Date: \underline{\hspace{3cm}}} \vspace{-3mm}
{Number lines: Answers} \vspace{1pt}\hrule}

\begin{document}
    \HeadingAnswers
    \vspace{-1mm}
    <<diagrams>>
\end{document}

