Integers include all whole numbers and their opposites, such as \(-3, 0, 5\). Rational numbers include integers, fractions, and decimals that can be written as a ratio of two integers.
When you add or subtract integers, think of a number line. Moving to the right increases the value, and moving to the left decreases it. The same rules apply when dealing with negative numbers.
Multiplying or dividing numbers with the same sign produces a positive result, while different signs give a negative result.
Balancing a checking account, tracking temperatures, or even playing games with points can involve positive and negative numbers.
Calculating your bank balance after deposits and withdrawals.
Reading temperatures that fall below zero.
Understanding how to work with positive and negative numbers, fractions, and decimals.