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Nombres negatius, exercicis

(1)
Aplicació, sumes restes, etc.

Recordar signes iguals en cas de suma , es mantè. En cas de signes diferents i suma, preval el signe del nombre més alt.


En cas de resta amb signes preval --> - (-) = + - (+) = -

Ex. 5 - (-2) = 5 + 2 = 7 -5 - (+2) = -5 - 2 = - 7

Signe mateix dona signe positiu o +

Signe diferent dona signe negatiu o -
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    TiNkYwInky MDLRʰᵃᵗᵉ ᵘ
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