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RayssaBrito
@RayssaBrito
December 2019
2
22
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Calcule
a) ( + 5 +3 -2) - ( 10+3-15)
b) ( 12+ ( -3) -4) + ( -3+7-2)
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luizkinho88
a) ( + 5 +3 -2) - ( 10+3-15)
(+8-2) - (13-15)
+6 - (-2)
+6 +2
+8
b) ( 12+ ( -3) -4) + ( -3+7-2)
(12 -3 -4 ) + (+4-2)
(9-4) + (+2)
5 +2
7
1 votes
Thanks 1
maycksabbadin
a) ( + 5 +3 -2) - ( 10+3-15)
b) ( 12+ ( -3) -4) + ( -3+7-2)
Primeiro resolve oq ta em parenteses
a) (5 +3-2) - (10+3-15)
(6) - (-2) "- com - da +, regra de sinais"
6+2 =
8
b)
( 12+ ( -3) -4) + ( -3+7-2)
( 12 - 3 - 4) + (-3 +7 -2)
5 + 2 =
7
0 votes
Thanks 1
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Lista de comentários
(+8-2) - (13-15)
+6 - (-2)
+6 +2
+8
b) ( 12+ ( -3) -4) + ( -3+7-2)
(12 -3 -4 ) + (+4-2)
(9-4) + (+2)
5 +2
7
b) ( 12+ ( -3) -4) + ( -3+7-2)
Primeiro resolve oq ta em parenteses
a) (5 +3-2) - (10+3-15)
(6) - (-2) "- com - da +, regra de sinais"
6+2 = 8
b) ( 12+ ( -3) -4) + ( -3+7-2)
( 12 - 3 - 4) + (-3 +7 -2)
5 + 2 = 7