How to Add Negative and Positive Numbers?

To add two positive numbers, add their values and keep the positive sign.

To add two negative numbers, add their values and keep the negative sign.

To add a positive and a negative number, subtract the smaller absolute value from the larger absolute value.

Keep the sign of the number with the larger absolute value.

If the absolute values are equal, the sum is zero.

Use a number line to move right for positive numbers and left for negative numbers.

Check the sign after combining the values.