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## Arithmetic

### Course: Arithmetic>Unit 18

Lesson 5: Intro to adding negative numbers

# Zero pairs worked example

When we have a positive unit and a negative unit, they add up to zero. We call that a zero pair. Let's use integer chips to represent the number -2, but not just with 2 negative chips. This will open the door for us to add and subtract with negative numbers. Created by Sal Khan.

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• What I do?
confusin.
• why would they add new content? i literrally have to redo everything.
• umm you don't...
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• I am in tenth grade.
• then what are you doing here?
• Wow, first question!
• This is easy
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• Excuse me bro do you guys watch 1 hour of videos bro only in ohikhan
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• what is zero pair.
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• @Bryson Bryson Bryson

Good Question! When we have a positive unit and a negative unit, they add up to zero. We call that a zero pair. Let's use integer chips to represent the number -2, but not just with 2 negative chips. This will open the door for us to add and subtract with negative numbers.

Remember that each member of a pair of numbers such as –3 and 3 is called the opposite of the other number. The pairs are also called “zero pairs” because their sum is zero.

Also, Sal explains this thoroughly in his video and article before this about Zero pairs if you want to go back and look.

Hope this helps.
(1 vote)
• Does the + on top of - count as zero pairs?
(1 vote)
• Wow. (fourth question.)
:)