Subtracting 2

Learning Objectives Subtract 2 from any number between 2 and 20. Demonstrate subtracting 2 by counting backwards. Use a number line to model subtracting 2. Solve simple word problems that involve taking away 2. Write a subtraction sentence for a 'subtracting 2' problem. Explain what 'taking away 2' means using objects or drawings. You have 5 yummy cupcakes 🧁. If you share 2 with a friend, how many are left for you? Today, we will learn a special skill called 'subtracting 2'. It's like a magic trick for making numbers a little smaller! We will use pictures and number lines to make it super easy. Real-World Applications Sharing 2 of your toys with a sibling. Eating 2 crackers from your snack pile. Giving 2 pencils to a friend in cla...

TermDefinitionExample SubtractTo take some things away from a group.If you have 4 balls ⚽⚽⚽⚽ and you subtract 2, you take 2 away. Minus Sign (-)This little line tells us to subtract. It means 'take away'.The problem 7 - 2 means 'seven take away two'. DifferenceThe answer you get when you subtract. It's how many are left.In 5 - 2 = 3, the number 3 is the difference. Take AwayA simple way to say subtract. You are removing items from a set.You have 6 cookies 🍪. You take away 2. You have 4 left. Count BackA strategy to subtract by counting backwards from the starting number.To solve 9 - 2, you start at 9 and count back two numbers: 8, 7. The answer is 7. Number SentenceA math problem written with numbers and signs.8 - 2 = 6 is a complete number sentence.

The Counting Back Rule n - 2 To subtract 2 from a number, just say the number and count back two times. The number you land on is the answer! The Number Line Hop Start at n, hop left 2 times Find your first number on the number line. Then, make two big hops to the left to find the answer.