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SihamK78
@SihamK78
January 2021
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bjr vous pouvez m'aidez svp
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Dreamus
Verified answer
Bonsoir,
Calcul de chaque expression numérique :
a) A= (+38) + (-26) + (+17) + (-33)
A= (+12) + (-16)
A= -4
b)B= ( -17) - (+9) + (-13) - (- 15) + (+14)
B= (-17) + ( - 9) + (-13) + (+ 15) + (+14)
B= (-26) + (+2) + (+14)
B= (-24) + (+14)
B= -10
c) C = -11 + 14 - (-9) + 11 - 15 - (-13) + 7
C = -11 + 14 + (+9) + 11 - 15 + (+13) + 7
C = (+3) + 20 - 2 + 7
C = 23 + 5
C = 28
Voilà ! J'espère t'avoir aidé ! ^^
Dreamus
2 votes
Thanks 3
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Verified answer
Bonsoir,Calcul de chaque expression numérique :
a) A= (+38) + (-26) + (+17) + (-33)
A= (+12) + (-16)
A= -4
b)B= ( -17) - (+9) + (-13) - (- 15) + (+14)
B= (-17) + ( - 9) + (-13) + (+ 15) + (+14)
B= (-26) + (+2) + (+14)
B= (-24) + (+14)
B= -10
c) C = -11 + 14 - (-9) + 11 - 15 - (-13) + 7
C = -11 + 14 + (+9) + 11 - 15 + (+13) + 7
C = (+3) + 20 - 2 + 7
C = 23 + 5
C = 28
Voilà ! J'espère t'avoir aidé ! ^^
Dreamus