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Sagot :

Bonjour

Calculer les expressions suivantes :

a) (-0,5) * 3 * (-2)

= (- 0,5) x (- 2) x 3

= 1 x 3

= 3

b) - 3+ 8×( -5

= - 3 - 40

= - 43

c;12-12÷(-0,5)-8

= 12 + 24 - 8

= 36 - 8

= 32.

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