bonjour merci davance
Transformer chaque expression en uns suite d'additions puis la calculer sans utiliser la calculatrice. a./ = (+2) - (+8) + (-3) - (-5) + (+7)
b. J= (-8) - (+6)-(-3) + (+7) - (-9)
c. K= (-15) - (-9) + (+11)-(-25) - (+16)​
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