
S1: Repaso T1 y T2
Authored by CHRISTIAN BERGER
Mathematics
6th - 8th Grade
Used 1+ times

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24 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué número entero representa una deuda de 120 dólares?
Answer explanation
Una deuda se representa con un número negativo.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuál el valor absoluto de |-45|?
Answer explanation
El valor absoluto de un número es su distancia al cero, siempre positivo.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ordena de menor a mayor: -15; 8; |-20|; 0; |6|; -2; op(3).
-15; -2; op(3); 0; |6|; 8; |-20|
|-20|; -15; op(3); 0; 2; |6|; 8
-15; op(3); -2; 0; |6|; 8; |-20|
0; -2; op(3); |6|; 8; 15; |-20|
Answer explanation
|-20| = +20 (el valor absluto siempre es positivo;
|6| = +6;
op(3) = -3
Ordenados de menor a mayor: -15, -3, -2, 0, 6, 8, 20.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Encuentra el valor de x:
x - 25 = -75
Answer explanation
Con el valor correcto de x=-50 es:
- 50 - 25 = -75
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué número entero representa una altura de 350 metros sobre el nivel del mar?
-350
350
Answer explanation
La altura sobre el nivel del mar se representa con un número positivo.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Anota el valor opuesto de op(50).
50
0
-50
Answer explanation
El opuesto de un número es el mismo número con signo contrario. op(50) es -50, y su opuesto es 50.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
-24
8
Answer explanation
-10 - (-8) * 2 + 8 / 4 =
-10- (-16)+2=
-10+16+2 =
+6+2=8
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