Q1: Solve.<br>- <span class="ql-formula" data-value="3458+\mathrm{y}=4688"><span class="katex"><span class="katex-mathml"><math
Q3: Solve by trial.<br>- <span class="ql-formula" data-value="
Q4: Solve.<br>- <span class="ql-formula" data-value=" x+3=28"><span class="katex"><span
Q5: Find the average.<br>-Ages of patients (in years)
Q6: Estimate by rounding as indicated.<br>-Lisa stashed
Q7: Add.<br>- <span class="ql-formula" data-value="90,802+30,270"><span class="katex"><span class="katex-mathml"><math
Q8: Simplify.<br>- <span class="ql-formula" data-value="8 \times 3+\{12
Q9: Write expanded notation.<br>-8621<br>A) 8621 thousands<br>B) 1 thousands
Q10: Solve.<br>- <span class="ql-formula" data-value="x+141=681"><span class="katex"><span class="katex-mathml"><math
Q11: Multiply.<br>- <span class="ql-formula" data-value="8 \cdot 703"><span