Lesson 4: Adding Integers
Words to Know
Opposites: the same number, but different signs - one negative and one positive
Additive Inverse: two opposite numbers - they add to zero
Additive Inverse: two opposite numbers - they add to zero
Examples
1. Add Integers with the Same Sign
Video
Video
Tips
Draw a number line if it helps to see the positive and negative numbers added together.
Adding with same signs: keep the same sign.
Adding with different signs: take their difference (subtract the two numbers) and keep the bigger sign.
Adding with same signs: keep the same sign.
Adding with different signs: take their difference (subtract the two numbers) and keep the bigger sign.
Extra Examples
Problems of the DAY
Answers must be submitted by 9am the following school day!
1. 10 + (-12)
2. (-16) + (-23) + 8
1. 10 + (-12)
2. (-16) + (-23) + 8