
Operações com números racionais
Authored by MURILO VIEIRA
Mathematics
6th Grade
Used 2+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para somar ou subtrair frações com o mesmo denominador, temos que somar ou subtrair os numeradores e
somar os denominadores.
subtrair os denominadores.
Repetir o denominador.
multiplicar os denominadores.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para somar ou subtrair frações com denominadores diferentes, primeiro transformamos estas frações em frações equivalentes e que tenham o mesmo denominador. Para determinar o novo denominador usamos:
MMC
MDC
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Paulo e Maria comeram uma pizza juntos. Paulo comeu 5/8 da pizza e Maria comeu 2/8 da pizza. Qual a fração que representa quanto eles comeram juntos?
3/8
1/2
7/8
1/8
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A altura da casa de Bernardo era de 4,28 metros. Foi construído um 2º andar e a altura da casa passou a ser de 8,48 metros. Em quantos metros a altura inicial da casa foi aumentada?
4,20
4,1
4,02
4,08
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Em um campeonato de motocross Pedro Cangussu percorreu, de moto, 46,4 quilômetros. Outro motociclista, Lucas Henrique, percorreu metade dessa distância. Quantos quilômetros Lucas percorreu?
32,3 km
23,2 km
23,3 km
22, 3 km
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