Q66: Find the absolute value.<br>- <span class="ql-formula"
Q67: Simplify.<br>- <span class="ql-formula" data-value="\frac{5 x y}{14
Q68: Subtract.<br>- <span class="ql-formula" data-value="\frac{8}{2}-\frac{8}{2}"><span class="katex"><span class="katex-mathml"><math
Q69: Simplify.<br>- <span class="ql-formula" data-value="\frac{3 \cdot(5+7)+3 \cdot
Q70: Add. Do not use a number
Q72: Multiply.<br>- <span class="ql-formula" data-value="\left(\frac{5}{2}\right)\left(\frac{7}{2}\right)"><span class="katex"><span class="katex-mathml"><math
Q73: Insert <span class="ql-formula" data-value="<"><span class="katex"><span
Q74: Subtract.<br>- <span class="ql-formula" data-value="-1878-(-502)"><span class="katex"><span class="katex-mathml"><math
Q75: Find the reciprocal, if it exists.<br>--7<br>A)
Q76: Subtract.<br>- <span class="ql-formula" data-value="-1-\left(\frac{7}{6}\right)"><span class="katex"><span class="katex-mathml"><math