MATH KEY SHEET - Positive and Negative Numbers

Flashcards covering definitions and concepts from the notes on positive/negative numbers, zero, and number line movements.

What is a positive number?

A number greater than zero.

What is a negative number?

A number less than zero.

Where is zero located on the number line and what does it represent?

Zero sits in the middle between negative numbers (left) and positive numbers (right); it is neither positive nor negative.

On the number line, which side contains negative numbers and which side contains positive numbers?

Negative numbers are on the left; positive numbers are on the right.

What do 'below sea level' and 'above sea level' correspond to in the context of numbers?

'Below sea level' corresponds to negative numbers; 'above sea level' corresponds to positive numbers.

If you start at +3 on the number line and move up 2, what is the new value?

+5.

What does a balance of money represent when it is negative (debt)?

Debt or money owed; balance below zero.

Do negative numbers represent values greater than zero?

No. Negative numbers are less than zero (to the left of zero on the number line).

Can you name some examples of positive numbers?

+1, +2, +3, +4 (numbers greater than zero).

What is zero in terms of positivity or negativity?

Zero is the neutral value; it is neither positive nor negative.