REPASO 1ª Y 2ª EVALUACIÓN MATEMÁTICAS 2º ESO
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
ISMAEL DUTHILLEUL
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula y simplifica cuando sea posible:
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula y simplifica cuando sea posible:
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una zona del espacio hay un total de 1,3·1012 galaxias. Si en cada una de estas galaxias hay 4,53·1036 estrellas. ¿Cuántas estrellas hay en esta zona del espacio? (expresa esta cantidad en notación científica).
6,48·1048 estrellas
648·1046 estrellas
5,25·1022 estrellas
0,648·1049 estrellas
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula el máximo común divisor (mcd) y el mínimo común múltiplo (mcm) de 280 y 84
mcd (280 , 84) = 28
mcm (280 , 84) = 840
mcd (280 , 84) = 840
mcm (280 , 84) = 28
mcd (280 , 84) = 28
mcm (280 , 84) = 520
mcd (280 , 84) = 840
mcm (280 , 84) =32
mcd (280 , 84) = 32
mcm (280 , 84) = 840
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula:
-380
380
120
-120
240
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una empresa química hay un recipiente lleno de líquido en una habitación que se encuentra a 6º centígrados. Resulta muy importante que el líquido no se congele, por lo que se ha establecido que por cada grado que baje la temperatura de la habitación, se deberán añadir dos gotas de anticongelante. Si la temperatura de la habitación pasa a ser de -21º centígrados, ¿Cuántas gotas de anticongelante se deberá haber añadido al recipiente?
27
54
15
30
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula expresando previamente los números decimales en forma de fracción:
325
482
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