Prueba diagnostica para sexto de Secundaria.
Quiz
•
Mathematics
•
12th Grade
•
Hard
Pedro Romero De Los Santos
Used 3+ times
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30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 4 pts
Resuelve la ecuación: 3x + 5 = 20.
0
15
10
5
Answer explanation
Para resolver la ecuación 3x + 5 = 20, restamos 5 de ambos lados: 3x = 15. Luego, dividimos entre 3: x = 5. Por lo tanto, la respuesta correcta es 5.
2.
MULTIPLE CHOICE QUESTION
15 mins • 4 pts
¿Cuál es el resultado de 7 + (3 × 2) - 4?
5
9
10
8
Answer explanation
Primero, resolvemos la multiplicación: 3 × 2 = 6. Luego, sumamos 7 + 6 = 13. Finalmente, restamos 4: 13 - 4 = 9. Por lo tanto, el resultado es 9.
3.
MULTIPLE CHOICE QUESTION
15 mins • 4 pts
Simplifica la expresión: 2(3x + 4) - 5.
2x + 4
3x + 5
6x + 8
6x + 3
Answer explanation
Para simplificar 2(3x + 4) - 5, primero multiplica: 6x + 8 - 5. Luego, resta 5: 6x + 3. Por lo tanto, la respuesta correcta es 6x + 3.
4.
MULTIPLE CHOICE QUESTION
15 mins • 4 pts
Calcula la raíz cuadrada de 144.
10
12
14
16
Answer explanation
La raíz cuadrada de 144 es 12, ya que 12 x 12 = 144. Por lo tanto, la respuesta correcta es 12.
5.
MULTIPLE CHOICE QUESTION
15 mins • 3 pts
Si x^2 = 49, ¿cuáles son los valores de x?
x = -14
x = 14
x = 7, x = -7
x = 0
Answer explanation
Para resolver x^2 = 49, tomamos la raíz cuadrada de ambos lados. Esto da x = 7 y x = -7. Por lo tanto, los valores correctos de x son x = 7 y x = -7.
6.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Resuelve el problema: Si un libro cuesta 15 euros y compras 4, ¿Cuánto gastas en total?
60 euros
75 euros
30 euros
45 euros
Answer explanation
Para calcular el total, multiplica el precio del libro (15 euros) por la cantidad comprada (4): 15 x 4 = 60 euros. Por lo tanto, gastas un total de 60 euros.
7.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Resuelve la siguiente operación combinada
3 + 5 × 2 = ?
8
12
15
13
Answer explanation
Para resolver 3 + 5 × 2, primero multiplicamos 5 × 2 = 10. Luego sumamos 3 + 10 = 13. Por lo tanto, la respuesta correcta es 13.
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