Age Problem: John and his father

easyGrade 3-5age difference

The Problem

John is 12 years old. His father is 2 years younger than John. How old is his father?

Answer:

10 years old

Key Information

  • John is 12 years old
  • his father is 2 years younger

Step-by-Step Solution

1

Identify the given information

John's age = 12 years, Age difference = 2 years
2

Set up the equation

his father's age = John's age - 2
3

Substitute values

his father's age = 12 - 2
4

Calculate

12 - 2 = 10
5

Final answer

his father is 10 years old

Common Mistakes to Avoid

  • Adding instead of subtracting the age difference
  • Confusing who is older or younger

Helpful Tips

  • Read the problem carefully to identify who is older
  • Subtract when someone is younger, add when they are older

Real-World Application

Age problems help understand relationships between ages and develop subtraction skills.

Related Topics:

agesubtractionword problemsbasic math

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