
REPASO 3 PRACTICO
Authored by Cinthya Reyes
Mathematics
8th Grade
Used 5+ times

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10 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Una señal de tránsito de 2 metros de altura proyecta una sombra de 10 metros, al mismo tiempo una pared de un edificio proyecta una sombra de 70 metros. ¿Cuál es la altura de la pared? Halle el valor desconocido.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Una poste de energía eléctrica de 3 metros de altura proyecta una luz de 4 metros, al mismo tiempo un árbol de pino proyecta una sombra de 9 metros. ¿Cuál es la altura del pino?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Representa gráficamente el conjunto unión y entre llaves AUB
A= {4,8,12,16, 20, 24} B={6,12, 18, 24}
AUB= { }
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Representa gráficamente conjunto intersección y entre llaves A∩B
A= {4,8,12,16, 20, 24} B={6,12, 18, 24}
A∩ B= { }
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5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Realiza las siguientes operaciones de números enteros.
+6+3-2+7-8-3+9-6-9=
-10
7
-3
14
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Realiza la siguiente resta de Z.
-8 - (+5)
-3
-13
+13
-40
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Resuelva la siguiente multiplicación de números enteros
1) Se multiplican los factores 6x8 de manera normal
2) Aplica la ley de signos de la multiplicación
(-) x (+)=
9
8
72
-48
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