What Does - Mean On A Calculator Test

Understanding the '-' symbol in calculator tests:

The '-' symbol can have different meanings depending on the context of the test or calculator being used.

Explanation:

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1. Meaning of '-' in Calculator Tests

The '-' symbol on calculator tests typically indicates subtraction, but can sometimes represent negative numbers or special functions depending on the context.

2. Subtraction Operation

The primary meaning of '-' is subtraction between two numbers or values.

Example: 5 - 3 = 2

Key points:

Used between two numbers to indicate subtraction
Follows standard order of operations (PEMDAS/BODMAS)
Appears as a minus sign between operands

3. Negative Numbers

Details: When '-' appears before a number with no preceding number, it typically indicates a negative value.

4. Special Functions

Tips: On scientific calculators, '-' might be part of special function notations or error displays.

5. Frequently Asked Questions (FAQ)

Q1: Is '-' always subtraction on calculator tests?
A: Mostly, but check the test instructions as context may vary.

Q2: How to distinguish between subtraction and negative?
A: Subtraction appears between numbers, negative appears before a number.

Q3: What if my calculator shows '--'?
A: This typically indicates a negative result or error - consult your manual.

Q4: Can '-' mean something else in programming?
A: Yes, in programming it might indicate ranges, decrement, or other operations.

Q5: Why does my calculator show '-' before zero?
A: This indicates a negative zero, which might appear in certain calculations.