Give the opposite of each number. a. 3 b. –9 c. –5 d. 12 Solve each of the following problems. a. 9 + (–6) = ? b. (–5) + 8 = ? c. (–12) + (–6) = ? d. 10 – (–8) = ? e. (–4) – (+2) = ? f. –9 – (–5) = ? Solve each problem. Be sure to include the correct sign in your answer. a. 8 × 3 = ? b. –7 × 5 = ? c. –6 × (–9) = ? d. 8 ÷ (–2) = ? e. –24 ÷ (–3) = ? f. –36 ÷ 6 = ?