Negative numbers and opposite numbers

• Negative numbers: any numbers to the left of zero on a number line.
• Numbers increase in value as we move up/right on a number line.
• Opposite numbers: numbers with the same distance from 0, but on the opposite side of a number line.
• To find an opposite number, we attach a negative sign to the given number.
• Two LIKE signs give a positive sign.
• Two UNLIKE signs give a negative sign.