Sagot :
Bonsoir
A = 5 + 4 - 3 + 8 - 9 = +17 -12 = +5 (tu additionnes tous les + et tous les -)
B = 2,5 - 1 + 14 - 3,5 = +16.5 - 4.5 = + 12
C = 75 - 24 - 34 + 19 = +94 - 58 = + 36
D = 9 + 12 x 3 - 25 = 9 + 36 -25 = +45 -25 = +20
E = 18 - 4 + 3 x 7 = 14 +21 = +35
F = 4 x 0,9- 1,1 x 2 = 3.6 - 2.2 = +1.4
G = 13 - 35 : 7 + 2 x 3 = 13 - 5 +6 = 19-5 = +14
A = 5 + 4 - 3 + 8 - 9 = +17 -12 = +5 (tu additionnes tous les + et tous les -)
B = 2,5 - 1 + 14 - 3,5 = +16.5 - 4.5 = + 12
C = 75 - 24 - 34 + 19 = +94 - 58 = + 36
D = 9 + 12 x 3 - 25 = 9 + 36 -25 = +45 -25 = +20
E = 18 - 4 + 3 x 7 = 14 +21 = +35
F = 4 x 0,9- 1,1 x 2 = 3.6 - 2.2 = +1.4
G = 13 - 35 : 7 + 2 x 3 = 13 - 5 +6 = 19-5 = +14