To solve these problems, we use the rule from the worksheet:
Change subtraction to addition, and change the second number to its opposite.
Let’s go step by step for each problem.
---
Problem #1: (+8) - (-3)
→ Change minus to plus: (+8) + (+3)
→ Now add: 8 + 3 = 11
→ Answer:
+11
---
Problem #2: (+7) - (-12)
→ Change minus to plus: (+7) + (+12)
→ Add: 7 + 12 = 19
→ Answer:
+19
---
Problem #3: (+9) - (+3)
→ Change minus to plus: (+9) + (-3)
→ Now subtract (since signs are different): 9 - 3 = 6
→ Keep the sign of the bigger number → +9 is bigger → positive
→ Answer:
+6
---
Problem #4: (-9) - (-3)
→ Change minus to plus: (-9) + (+3)
→ Signs are different → subtract: 9 - 3 = 6
→ Keep the sign of the bigger absolute value → |-9| > |+3| → negative
→ Answer:
-6
---
Problem #5: (-11) - (-2)
→ Change minus to plus: (-11) + (+2)
→ Different signs → subtract: 11 - 2 = 9
→ Bigger absolute value is 11 → negative
→ Answer:
-9
---
Problem #6: (-4) - (+3)
→ Change minus to plus: (-4) + (-3)
→ Same signs → add: 4 + 3 = 7
→ Keep the sign → both negative → answer is negative
→ Answer:
-7
---
Final Answer:
#1: +11
#2: +19
#3: +6
#4: -6
#5: -9
#6: -7
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting integers worksheet printable.
