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Modeling with Subtraction. Lesson 2 . Elevator Magic!. You are on floor 10. You go 4 floors down. What floor are you on now? 10 – 4 = ? You are on floor 7 and take the elevator to floor 5. How many floors did you go down? 7 - ? = 5. Using Counters. YOU TRY!
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Modeling with Subtraction Lesson 2
You are on floor 10. You go 4 floors down. What floor are you on now? • 10 – 4 = ? • You are on floor 7 and take the elevator to floor 5. How many floors did you go down? • 7 - ? = 5 Using Counters
YOU TRY! • You are on floor 8 and go down 3. Which floor are you on now? • 8 – 3 = ? Using Counters
You are on floor 5 and go down 2 floors. Which floor are you on now? • 5 – 2 = ? • You are on floor 9 and take the elevator to floor 4. How many floors did you go down? • 9 - ? = 4 Using Fingers
YOU TRY! • You are on floor 8 and take the elevator to floor 3. How many floors did you go down? • 8 - ? = 3 Using Fingers
You are on floor 3. You go down 1 floor. What floor are you on now? • 3 – 1 = ? • You are on floor 10 and take the elevator to floor 8. How many floors did you go down? • 10 - ? = 8 Using Unifix Cubes
YOU TRY! • You are on floor 6 and take the elevator down to floor 5. How many floors did you go down? • 6 - ? = 5 Using Unifix Cubes
You are on floor 4 and go down 2 floors. What floor are you on now? • 4 – 2 = ? • You are on floor 9 and take the elevator to floor 3. How many floors did you go down? • 9 - ? = 3 Using Number Lines
YOU TRY! • You are on floor 8 and take the elevator down to floor 2. How many floors did you go down? • 8 - ? = 2 Using Number Lines
You are on floor 5 and go down 3 floors. Which floor are you on now? • 5 – 3 = ? • You are on floor 10 and you take the elevator to floor 3. How many floors did you go down? • 10 - ? = 3 Using Ten Frames
YOU TRY! • You are on floor 9 and take the elevator to floor 1. How many floors did you go down? • 9 - ? = 1 Using Ten Frames