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GNKZ

Bonjour,

37 : A = - 7 + 5 x (-6)

A = - 7 + (-30)

A = -37

B = (-7 + 5) x (-6)

B = -2 x (-6)

B = 12

C = 4 x 8 - (-9)

C = 4 x 8 + 9

C = 32 + 9

C = 41

D = 4 x [8 - (-9)]

D = 4 x [8 + 9]

D = 4 x 17

D = 68

38 :

A = 9 - 12 : 3

A = 9 - 4

A = 5

B = (9 - 12) : 3

B = (-3)      : 3

B = - 1

C = -36 : 6 - 2

C = -6 - 2

C = - 8

D = - 36 : (6 - 2)

D = - 36 : (4)

D = -9

Réponse:

Ex 37:

A=-7+5×(-6)

A=-7-30

A=-37

B=(-7+5)×(-6)

B=-2×(-6)

B=12

C=4×8-(-9)

C=32-(-9)

C=32+9

C=41

D=4×[8-(-9)]

D=4×[8+9]

D=4×17

D=68

Ex:38

A=9-12÷3

A=9-4

A=5

B=(9-12)÷3

B=(-3)÷3

B=-1

C=-36÷6-2

C=-6-2

C=-8

D=-36÷(6-2)

D=-36÷4

D=-9

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