Calculer chacune de ses expressions ci-dessous, en détaillant les étapes :
(7-5)×(16-9)
(3×2×30+14)/2
(4×2×9)/(17-3×5)
[11+(98+2)×11]×5
Merci a vous ! :)
(7-5)×(16-9)
(3×2×30+14)/2
(4×2×9)/(17-3×5)
[11+(98+2)×11]×5
Merci a vous ! :)
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bonjour
(7-5)×(16-9) = 2 * 7 = 14
(3×2×30+14)/2 = ( 180 + 14) /2 = 194/2 = 97
(4×2×9)/(17-3×5) = 72 / ( 17 - 15) = 72 / 2 = 36
[11+(98+2)×11]×5 = [ 11 + ( 100) * 11 ] * 5 = [11 +( 1100) ] * 5 = 1111 * 5 = 5555