64 Calcule. R = 7+ 14 - 5 - 7 +9 S = 2 + 10-9 +6-3 T = 5 + 15 - 11 - 4 + 14 U = 18 + 1 - 5 +13 + 5 V = 8-21 + 16 +19 - 10 - -
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Bonjour,
R = 7 + 14 - 5 - 7 + 9
= 21 - 3
= 18
S = 2 + 10 - 9 + 6 - 3
= 12 - 6
= 6
T = 5 + 15 - 11 - 4 + 14
= 20 - 1
= 19
U = 18 + 1 - 5 + 13 + 5
= 19 + 13
= 32
V = 8 - 21 + 16 + 19 - 10
= -13 + 25
= 12