Q310: Evaluate.<br>- <span class="ql-formula" data-value="\frac{x+y}{9}"><span class="katex"><span class="katex-mathml"><math
Q311: Solve the problem.<br>-During one year 38 new
Q312: Multiply.<br>- <span class="ql-formula" data-value="-8 \cdot(-0.8) \cdot
Q313: Multiply.<br>- <span class="ql-formula" data-value="-1.2 \cdot(-12.8)"><span class="katex"><span
Q314: Solve the problem.<br>-The attendance at 3 games
Q316: Rewrite the division as a multiplication.<br>-
Q317: Remove parentheses and simplify.<br>- <span class="ql-formula"
Q318: Simplify.<br>- <span class="ql-formula" data-value="(6+5)[7+(4+5)]"><span class="katex"><span class="katex-mathml"><math
Q319: Use the commutative and/or associative laws
Q320: Simplify.<br>- <span class="ql-formula" data-value="6+(-8)-(-1)-6"><span class="katex"><span class="katex-mathml"><math