\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{123456789ABCDEFGH}
\pdfinfo{
  /Title (math-basics.pdf)
  /Creator (Cheatography)
  /Author (123456789ABCDEFGH)
  /Subject (Math Basics Cheat Sheet)
}

% Lengths and widths
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\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
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\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
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\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Math Basics Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{123456789ABCDEFGH} via \textcolor{DarkBackground}{\uline{cheatography.com/168857/cs/35337/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}123456789ABCDEFGH \\
  \uline{cheatography.com/123456789abcdefgh} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 8th November, 2022.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{4}

\begin{tabularx}{3.833cm}{p{0.73724 cm} p{0.71091 cm} p{0.5266 cm} p{0.65825 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{3.833cm}}{\bf\textcolor{white}{Negatives}}  \tn
% Row 0
\SetRowColor{LightBackground}
Adding & \seqsplit{Subtracting} & \seqsplit{Multiplying} & Dividing \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{(+)+(+)=(+)} & \seqsplit{(+)-(+)=(+)} & \seqsplit{(+)x(+)=(+)} & (+) ÷(+)= (+) \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
(-)+(-)=\textless{}(-) & \seqsplit{(-)-(-)=(-)+(+)} & \seqsplit{(-)x(-)=(+)} & (-) ÷(-)= (+) \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{(+)+(-)=(+)-(+)} & \seqsplit{(+)-(-)=(+)+(+)} & \seqsplit{(+)x(-)=(-)} & (+) ÷(-)= (-) \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{(-)+(+)=(+)+(-)} & \seqsplit{(-)-(+)=(+)+(+)} & \seqsplit{(-)x(+)=(-)} & (-) ÷(+)=(-) \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.65825 cm} p{0.68458 cm} p{0.68458 cm} p{0.60559 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{3.833cm}}{\bf\textcolor{white}{Properties}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{Commutative} & \seqsplit{Associative} & Identity & Inverse \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{commutative} property states that the numbers on which we operate can be moved or swapped from their position without making any \seqsplit{difference} to the answer & \seqsplit{associative} property is a property of some binary \seqsplit{operations} & identity is an equality relating one \seqsplit{mathematical} \seqsplit{expression} to another & Inverse means the opposite in effect \tn 
% Row Count 18 (+ 16)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.65825 cm} p{0.65825 cm} p{0.65825 cm} p{0.65825 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{3.833cm}}{\bf\textcolor{white}{Fractions}}  \tn
% Row 0
\SetRowColor{LightBackground}
Adding & \seqsplit{Subtracting} & \seqsplit{Multiplying} & Dividing \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Find a common \seqsplit{denominator}. Add the \seqsplit{numerators} (and keep the \seqsplit{denominator)} Simplify the fraction. & Make sure the bottom numbers (the \seqsplit{denominators)} are the same. Subtract the top numbers (the \seqsplit{numerators)}. Put the answer over the same \seqsplit{denominator}. Simplify the fraction (if needed) & Multiply the two \seqsplit{numerators}. Then multiply the two \seqsplit{denominators}. Simplify the new \seqsplit{fractions.} & The first step to dividing fractions is to find the \seqsplit{reciprocal} (reverse the numerator and \seqsplit{denominator)} of the second fraction. Next, multiply the two \seqsplit{numerators}. Then, multiply the two \seqsplit{denominators}. Finally, simplify the fractions if needed. \tn 
% Row Count 27 (+ 25)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.06423 cm} x{2.36877 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Tools}}  \tn
% Row 0
\SetRowColor{LightBackground}
Pi & \seqsplit{3.141592653589793238462643383279502} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Place Value & M  HTH  TTH  T  H  T  O . 1/10 1/100 1/1000 \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Order of Operation & Brackets, Parentheses, Exponents, Add-Subtract, Multiply-Divide \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
Area & B·H=A \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Volume & B·H·W=V \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
Prime (1-100) & 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97... \tn 
% Row Count 13 (+ 4)
% Row 6
\SetRowColor{LightBackground}
Composite (1-100) & 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100 \tn 
% Row Count 24 (+ 11)
% Row 7
\SetRowColor{white}
Square Root & x2 = y \tn 
% Row Count 25 (+ 1)
% Row 8
\SetRowColor{LightBackground}
Denominator & Bottom number of a fraction \tn 
% Row Count 26 (+ 1)
% Row 9
\SetRowColor{white}
Numerator & Top number of a fraction \tn 
% Row Count 27 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}