Let me solve these integer subtraction problems step by step.
Problem 1: 7 - 5 = ?
Starting at 7 on the number line, I move 5 units to the left (subtracting).
7 - 5 = 2
Answer: A. 2
Problem 2: 4 - 8 = ?
Starting at 4 on the number line, I move 8 units to the left (subtracting).
From 4, going left 8 units: 4 → 3 → 2 → 1 → 0 → -1 → -2 → -3 → -4
4 - 8 = -4
Answer: D. -4
Problem 3: 6 - (-2) = ?
When subtracting a negative number, it becomes addition.
6 - (-2) = 6 + 2 = 8
Or thinking about it on the number line: starting at 6 and moving 2 units to the RIGHT (because subtracting a negative means adding).
6 + 2 = 8
Answer: B. 8
Final Answer:
1. A. 2
2. D. -4
3. B. 8
Parent Tip: Review the logic above to help your child master the concept of integers number line worksheet.
