Q252: Evaluate <span class="ql-formula" data-value="-(-x)"><span class="katex"><span
Q253: Simplify.<br>- <span class="ql-formula" data-value="15+(-18)+13+(-3)+8+(-20)"><span class="katex"><span class="katex-mathml"><math
Q254: Subtract.<br>- <span class="ql-formula" data-value="-0.57-8"><span class="katex"><span class="katex-mathml"><math
Q255: Subtract.<br>- <span class="ql-formula" data-value="-11-(-11)"><span class="katex"><span class="katex-mathml"><math
Q256: Provide an appropriate response.<br>-Choose the expression
Q258: Find an equivalent expression without parentheses.<br>-
Q259: Substitute to find the value of
Q260: Multiply.<br>- <span class="ql-formula" data-value="\frac{8}{7}(a-b+7)"><span class="katex"><span class="katex-mathml"><math
Q261: Subtract.<br>- <span class="ql-formula" data-value="\frac{5}{6}-\frac{1}{24}"><span class="katex"><span class="katex-mathml"><math
Q262: Add. Do not use a number