Esercizi svolti per il libro Matematica.blu: Algebra, Geometria, Statistica, Vol. 1 con autore Massimo Bergamini, Anna Trifone, Graziella Barozzi
Domanda
{[(10−7+3+2−5)⋅(25:5)−2]⋅[(30−5+1−16):(30:15)+10+7−20]}:2\{[(10-7+3+2-5)\cdot(25:5)-2]\cdot[(30-5+1-16):(30:15)+10+7-20]\}:2{[(10−7+3+2−5)⋅(25:5)−2]⋅[(30−5+1−16):(30:15)+10+7−20]}:2
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Soluzione
{[(3)⋅(5)−2]⋅[(10):(2)+10+7−20]}:2\{[(3)\cdot(5)-2]\cdot[(10):(2)+10+7-20]\}:2{[(3)⋅(5)−2]⋅[(10):(2)+10+7−20]}:2 === {[(15)−2]⋅[(5)+10+7−20]}:2\{[(15)-2]\cdot[(5)+10+7-20]\}:2{[(15)−2]⋅[(5)+10+7−20]}:2 === {[13]⋅[2]}:2\{[13]\cdot[2]\}:2{[13]⋅[2]}:2 === {26}:2\{26\}:2{26}:2 === 131313