
Operações com números Racionais
Authored by Tatiane Silva
Mathematics
7th Grade
Used 18+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A forma fracionária de 0,4444.... é:
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Após observar as desigualdades, indique qual é a alternativa correta.
(I) 10, 001 < 9, 99 (II) 2, 09 > 1, 9 (III) 9, 01 < 0, 901
I e II estão certas
II está errada
I e III estão erradas
Todas estão erradas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Associar as frações , e com as letras, de acordo com as suas posições na reta numerada.
A= ;B= ;C=
A= ;B= ;C=
A= ;B= ;C=
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das alternativas representa a subtração 4/9-6/9?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a alternativa que representa a subtração (+30,2) + (-0,65) ?
2,37
3,37
1,32
29,55
6.
OPEN ENDED QUESTION
3 mins • Ungraded
Qual é a alternativa que representa o número 0,65 na forma de fração?
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7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Minha tia é manicure. Na terça-feira ela esqueceu, na casa de uma cliente, um frasco de removedor de esmalte com do produto. Na quarta-feira ela esqueceu, novamente, um frasco com do produto, na casa de uma segunda cliente. E na sexta-feira ela ganhou de uma terceira cliente, um frasco com do produto. No sábado, as duas clientes levaram os frascos esquecidos pela minha tia. Juntando tudo o que sobrou nos frascos, mais os que ela ganhou, qual foi a quantidade de removedor de esmaltes que ela ficou?
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