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Bonjour,

2) Colonne par colonne.

COLONNE 1 :

60 ¦ (5+2x(8-2))x3 = 60 ¦ (5+12)x3 = 60 ¦ 17x3 = 60 ¦ 51

7 ¦ 4x7+3x9 = 27 ¦ 28 + 27 = 7 ¦ 55

6 ¦ 25-(16-(9+4) = 6 ¦ 25-(16-13) = 6 ¦ 25-3 = 6 ¦ 22
55 ¦ (5x3)x(16/2+6/3) = 55 ¦ 2 x (8 +2) = 55 ¦ 2 x 10 = 55 ¦ 20

16 ¦ 1+2x3+4x5 = 16 ¦ 1 + 6 + 20 = 16 ¦ 27

COLONNE 2 :

27 ¦ 15/3-[tex]\frac{32}{8}[/tex]+3x6  = 27 ¦ 5 - 4 + 18 = 27 ¦ 1 + 18 = 27 ¦ 19

3 ¦ (15/(3+2)-1)x6 = 3 ¦ (15/5-1))x6 = 3 ¦ (3-1)x6 = 3 ¦ 2x6 = 3 ¦ 12

51 ¦ (7+2x(4+5))/5 = 51 ¦ (7+18)/5 = 51 ¦ 25/5 = 51 ¦ 5

2 ¦ 33-(9,7+8,3) = 2 ¦ 33-18 = 2 ¦ 15

12 ¦ [tex]\frac{49}{35/5}[/tex] = 12 ¦ [tex]\frac{49}{7}[/tex] = 12 ¦ 7

COLONNE 3 :

22 ¦ [tex]\frac{3*5-7}{4}[/tex] = 22 ¦ [tex]\frac{15-7}{4}[/tex] = 22 ¦ [tex]\frac{8}{4}[/tex] = 22 ¦ 2

5 ¦ (12-(6+4))x8 = 5 ¦ (12-10)x8 = 5 ¦ 2x8 = 5 ¦ 16

20 ¦ 15x(6,4-2x1,2) = 20 ¦ 15x4 = 20 ¦ 60

19 ¦ 30/((11-9)x2+1) = 19 ¦ 30/(2x2)+1 = 19 ¦ 30/5 = 19 ¦ 6

15 ¦ (19+8)/(5+4) = 15 ¦ 27/9 = 15 ¦ 3

5) Voir pièce jointe.