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token make a ʻzero pairʼ. When you remove all the zero pairs, you are left with two positive
tokens, so (+5) + (–3) = +2. We can perform any such addition using tokens!
Example: Add+ 5 and – 8.
From the picture, we see that we can remove five zero pairs, and we are then left
with – 3. Therefore (+ 5) + (– 8) = – 3
Using tokens for addition
We have seen how to perform addition of integers with positive tokens and negative tokens.
We can also perform subtraction using tokens.
