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Marcelhenriyves
@Marcelhenriyves
April 2019
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URGENT, Bonjour, pouvez-vous m'aider SVP, je n'y arrive pas :
Il faut détailler les calculs
A=(+17) + (-5) - (+4) + (5) - (-3)
B= (-12) + (-4) + (+7) - (+8) + (-6)
C= (-3,2) - (+5,4) + (-4,8) - (+6,6) + (-1)
D= (+1,2) + (-4,2) - (+7,1) - (-6,7)
E= 34 + 28 - 12 + (-4 + 6) - 23
MERCI beaucoup
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clarabello
A = 16
B = - 23
C = - 21
D = - 3,4
E = 29
0 votes
Thanks 1
cavalier
attention tu as fais des erreurs
cavalier
autant pour moi, j'avais calculé avec -3
marcelhenriyves
La A est égale à 16 ?
cavalier
A=(+17) + (-5) - (+4) + (5) - (-3)
= 17 -5 -4 +5 +3
= 25-9
= 16
B= (-12) + (-4) + (+7) - (+8) + (-6)
= -12 -4 +7 -8 -6
= -30 +7
= -23
C= (-3,2) - (+5,4) + (-4,8) - (+6,6) + (-1)
= -3,2 -5,4 -4,8 -6,6 -1
= -21
D= (+1,2) + (-4,2) - (+7,1) - (-6,7)
= 1,2 -4,2 -7,1 +6,7
= 7,9 - 11,3
= -3,4
E= 34 + 28 - 12 + (-4 + 6) - 23
= 34 +28 -12 +2 -23
= 64 - 35
= 29
0 votes
Thanks 1
kassandra37
la A est faux
kassandra37
verifie a la calculette
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B = - 23
C = - 21
D = - 3,4
E = 29
= 17 -5 -4 +5 +3
= 25-9
= 16
B= (-12) + (-4) + (+7) - (+8) + (-6)
= -12 -4 +7 -8 -6
= -30 +7
= -23
C= (-3,2) - (+5,4) + (-4,8) - (+6,6) + (-1)
= -3,2 -5,4 -4,8 -6,6 -1
= -21
D= (+1,2) + (-4,2) - (+7,1) - (-6,7)
= 1,2 -4,2 -7,1 +6,7
= 7,9 - 11,3
= -3,4
E= 34 + 28 - 12 + (-4 + 6) - 23
= 34 +28 -12 +2 -23
= 64 - 35
= 29