Real-world examples of integers in daily life for 6th graders.

📚 Quick Study Guide

• 🌡️ Integers include positive whole numbers, negative whole numbers, and zero.
• 📈 Numbers greater than zero are positive integers (1, 2, 3...).
• 📉 Numbers less than zero are negative integers (-1, -2, -3...).
• 📍 Zero (0) is an integer, but it is neither positive nor negative.
• 🧭 We use integers to represent values above and below a reference point, like sea level or a starting balance.
• ➕ The set of integers is often represented by the symbol $\mathbb{Z}$.

Practice Quiz

1. Which of the following is NOT an example of using integers in real life?
   1. A) Measuring temperature above and below 0°C.
   2. B) Representing floors in a building relative to ground level.
   3. C) Counting the number of students in a classroom.
   4. D) Tracking gains and losses in a bank account.
2. A submarine is 200 feet below sea level. How would you represent this depth as an integer?
   1. A) 200
   2. B) -200
   3. C) 0
   4. D) 200.5
3. The temperature outside is -5°C. Which statement is true?
   1. A) The temperature is 5 degrees above freezing.
   2. B) The temperature is 5 degrees below freezing.
   3. C) The temperature is at freezing point.
   4. D) The temperature is impossible.
4. You have $10 in your bank account and spend $15. What is your account balance as an integer?
   1. A) $25
   2. B) $5
   3. C) -$5
   4. D) -$25
5. A bird is flying 50 feet above the ground. How is this represented as an integer?
   1. A) -50
   2. B) 0
   3. C) 50
   4. D) Not an integer
6. Which of these situations involves using negative integers?
   1. A) Counting the number of apples in a basket.
   2. B) Measuring your height in centimeters.
   3. C) Describing a debt you owe to a friend.
   4. D) Calculating the area of a square.
7. An elevator starts at the ground floor (0). It goes up 5 floors, then down 2 floors. What integer represents its final position?
   1. A) -3
   2. B) 2
   3. C) 3
   4. D) 7