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Lista de Exercícios - Números racionais
Lista de Exercícios - Números racionais
EvertonAraujoMoraes
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Jan 03, 2016
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Acesse: http://matematicaetop.blogspot.com.br
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pt
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Jan 03, 2016
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Slide 1
http://matematicaetop.blogspot.com.br
Lista de Exercícios – Números Racionais
Profª.: Everton
Disciplina: Matemática
Data: ___/___/_______
Aluno(a): ________________________________________________ – nº.: ____ – 7º ano: ____
1) O valor da expressão
3
2 4 . 1 3 é igual a :
2) O valor da expressão
4
2
16 25 8 9 2 é igual a :
3) Efetue as operações indicadas nos cartões abaixo :
A soma algébrica dos resultados obtidos é:
4) Calcule, dando o resultado na forma de fração.
a)
4 1
5 2
b)
5 3
3 4
c)
3
0,25
4
d)
7
1
15
( 3) ( 5)
( 20):( 4) ( 2).( 3)
Slide 2
http://matematicaetop.blogspot.com.br
e)
5 10
9 12
f)
1
0,5
4
5) Resolva as expressões :
a)
2 0
4 3
3 4
b)
3 2
5 5
2 4
c)
3 4
2 2
5 3
d)
1 2
1 3
4 5
e)
49 5
5 36
f)
25
2. 100 3.
9
g)
1 49 16
9 4 9
h)
4 36 64
9 25 81
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