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MariaLuiza0112
@MariaLuiza0112
May 2019
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Escreva na forma simplificada e calcule:
A- (+20)+(-18)=
B- (-30)+(+21)=
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Ricardo1967
A- (+20)+(-18)=
20 - 18 =
2
B- (-30)+(+21)=
-30 + 21 =
- 9
2 votes
Thanks 2
victorfelipe14
+ com + = -
victorfelipe14
o dele esta errado, pois mais com mais é igual a menos
victorfelipe14
sim
victorfelipe14
A= 20-18 = 2
B= -30-21 = -51
1 votes
Thanks 1
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Lista de comentários
20 - 18 =
2
B- (-30)+(+21)=
-30 + 21 =
- 9
B= -30-21 = -51