I) Calculer :
H = (−17) + (−13,5 ) + (+2,7) + (−4,5)
I = (+16) + (−12,3) − (−3,5) + (−8,7)
J =(+6,2)+(–1,8)+(–2,7)+(+3,3)+(–5)
K =(+14) + (–27) + (+16) + (–33) + (+17) + (–14)
II) Calculer astucieusement :
A = 17,02 + (−13,7) + 2,25 + (−7,02) + (−1,2) + (−3,3) + (−1,05)
H = (−17) + (−13,5 ) + (+2,7) + (−4,5)
I = (+16) + (−12,3) − (−3,5) + (−8,7)
J =(+6,2)+(–1,8)+(–2,7)+(+3,3)+(–5)
K =(+14) + (–27) + (+16) + (–33) + (+17) + (–14)
II) Calculer astucieusement :
A = 17,02 + (−13,7) + 2,25 + (−7,02) + (−1,2) + (−3,3) + (−1,05)
Lista de comentários
Réponse:
H = -32,3
I = -8,5
J = 0,7
K = - 27
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A = 17,02+(-13,7) = 3,5
A= 3,5+2,25 = 5,75
A= 5,75 +(-7,02)= -1,27
A=-1,27+(-1,2)= 0,07
A=0,07 +(-3,3)= -3,23
A=-3,23+(-1,05)= -4,73
A=3,5+5,75+(-1,27)+0,07+(-3,23)+(-4,73) = -1,18