Four Steps to Problem Solving Step 1 Understand

Four Steps to Problem Solving Step 1: Understand • Read the problem carefully and think about the following: • What facts do you know? • What do you need to find? Farmer Brown • 805 total corn plants bought 805 corn plants. He planted • 475 planted 475 of them on Saturday. How • How many does he have left to plant?

Four Steps to Problem Solving Step 2: • Decide on a strategy. Plan Farmer Brown’s • Subtraction bought 805 corn plants. He planted • Regrouping 475 of them on Saturday. How many does he have left to plant?

Four Steps to Problem Solving Step 3: Solve/Label • Estimate before using an operation. • Show and label all work. • Write a summary sentence. Farmer Brown’s 805 total plants 300 bought 805 corn - 475 planted plants. He planted 330 left to plant 475 of them on Saturday. How many does he Farmer Brown has 330 corn plants have left to plant? left to plant.

Four Steps to Problem Solving Step 4: Check Farmer Brown’s bought 805 corn plants. He planted 475 of them on Saturday. How many does he have left to plant? • Either: • Ensure your answer is reasonable based on your estimate. • Check your work using another strategy. 300 805 total plants - 475 planted 330 left to plant 330 + 475 805