35 Effectuer les calculs suivants. A = (+13) - (+8) + (-5) + (-2) B = (-9) + (-4) - (-1) - (+3) C = (-5) + (+6) - (+7) + (-8) D = (+12) - (-13) + (+7) - (+5)
Mathématiques
lilisern722
Question
35 Effectuer les calculs suivants. A = (+13) - (+8) + (-5) + (-2) B = (-9) + (-4) - (-1) - (+3) C = (-5) + (+6) - (+7) + (-8) D = (+12) - (-13) + (+7) - (+5)
2 Réponse
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1. Réponse nicoulaurensarmelle
Réponse:
A = (+13) - (+8) + (-5) + (-2)
A = +13 -8 -5 -2
A = +13 -15
A = -2
B = (-9) + (-4) - (-1) - (+3)
B = -9 -4 +1 -3
B = -16 +1
B = -15
C = (-5) + (+6) - (+7) + (-8)
C = -5 +6 -7 -8
C = -20 +6
C = -14
D = (+12) - (-13) + (+7) - (+5)
D = +12 +13 +7 -5
D = +32 -5
D = +23
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2. Réponse brrrruh01
Bonjour,
Réponse :
A = -2 ; B = -15 ; C = -2 ; D = 1
Explication :
A = 13 - 8 = 5 - 5 = 0 - 2 = -2
B = -9 + (-4) = -13 + 1 = -12 - 3 = -15
C = -5 + 6 = 1 -7 = 6 - 8 = -2
D = 12 - 13 = -1 +7 = 6 - 5 = 1