**Problem:** $15 + 5 = ?$ **Count and add:** **Group 1 (15 strawberries):** 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 ➕ **PLUS** **Group 2 (5 strawberries):** 🍓 🍓 🍓 🍓 🍓 **Count all together:** 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 🍓 ✨ **Total: 20 strawberries!** **Math:** $$15 + 5 = 20$$