Restando números enteros

Now Playing:Es subtracting integers – Example 1a

Resta los siguientes números utilizando una recta numérica:
1. $(+5) - (+2) =$
2. $(+9) - (+7) =$
3. $(-10) - (-3) =$
Restando números con signos iguales verticalmente:
1. $(+5)-(+2) =$
2. $(-9)-(-7) =$

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