Lemma
MediumIntegers
OpenStax, Prealgebra 2e §3.2 Add Integers · Exercise 63 · Arithmetic · Integers

Add Integers · Exercise 63

Explain why the sum of and is negative, but the sum of and and is positive.

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OpenStax, Prealgebra 2e · §3.2 Add Integers · Exercise 63

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