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LILISERN722
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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)​

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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

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

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