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

\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}

% raise footer with page number; no header
\fancypagestyle{myfancypagestyle}{
  \fancyhf{} % clear all header and footer fields
  \renewcommand{\headrulewidth}{0pt} % no rule under header
  \fancyfoot[C] {\thepage} \setlength{\footskip}{6pt} % raise page number 6pt
}
\pagestyle{myfancypagestyle}  % apply myfancypagestyle

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


