Logic Building/Phase 1 - Level 3: Math and Number Logic/Program

Check if Number in Range

Check if a number lies within the range [100, 999].

Logic BuildingIntermediate

Logic Building

# Take number
num = int(input("Enter a number: "))

# Check range
if 100 <= num <= 999:
    print("Number is in range [100, 999]")
else:
    print("Number is not in range [100, 999]")

Output

Enter a number: 500
Number is in range [100, 999]

Enter a number: 50
Number is not in range [100, 999]

Use range check with <= operator.

Key Concepts:

Range [100, 999]: 100 <= num <= 999
Inclusive of both endpoints
Use chained comparison

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