🔢 Negative Numbers

Laboratory work for understanding negative numbers

📚 Theory of Negative Numbers

What are negative numbers?

Negative numbers are numbers less than zero. They represent "shortage" or "debt".

🌡️ Real-life example: Temperature

+20°C
0°C
-10°C

When it's -10°C outside, it means the temperature is 10 degrees below zero!

💰 Real-life example: Money

💵 You have $50 +50
💸 You owe $30 -30

🏢 Real-life example: Building Floors

3rd floor
2nd floor
1st floor
Street (0)
-1st floor (basement)
-2nd floor (parking)

🎯 Practice

Try it yourself!

🌡️ Exercise 1: Temperature

Imagine it was -5°C in the morning, and it warmed up by 8 degrees during the day. What was the temperature during the day?

Temperature: -5°C

💰 Exercise 2: Money

You have $100. You bought a toy for $150. How much do you have left?

🏢 Exercise 3: Floors

You are on the 2nd floor and go down 5 floors. On which floor will you end up?

Current floor: 2

📝 Knowledge Check

Test your knowledge!

Question 1: Which temperature is lower?

Question 2: You have $50, but you owe $80. Your balance:

Question 3: You are on the 3rd floor, go up 2 floors, then go down 6 floors. Where are you?

Question 4: Which number is greater?

Question 5: -8 + 3 = ?