Exercice n°1 : Priorités opératoires
A = 6 x [13 (5-2)]
B = [(82) x 8] + 4 + 8
C = [(315) - (2 x 7)] ÷ 6 ÷ 2
D = 3,4+ [9 x (8 ÷ 2)] ÷ 6 x 7+2,6
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