KaTeX による四則演算（このサイトは KaTeX で数式を表示している）
<spanclass="m">1</span><spanclass="p">+</span><spanclass="m">1</span><spanclass="p">=</span><spanclass="m">2</span><spanclass="m">2</span><spanclass="p">−</span><spanclass="m">1</span><spanclass="p">=</span><spanclass="m">1</span><spanclass="m">2</span>×<spanclass="m">3</span><spanclass="p">=</span><spanclass="m">6</span><spanclass="m">6</span>/<spanclass="m">2</span><spanclass="p">=</span><spanclass="m">3</span><spanclass="m">6</span>÷<spanclass="m">2</span><spanclass="p">=</span><spanclass="m">3</span>
1+1=22−1=12×3=66/2=36÷2=3
\times と \div に続く数はカッコでくくってもいい。
<spanclass="m">2</span>×<spanclass="m">3</span><spanclass="p">=</span><spanclass="m">6</span><spanclass="m">6</span>÷<spanclass="m">2</span><spanclass="p">=</span><spanclass="m">3</span>
2×3=66÷2=3
