Olimpiadas matemáticas 9
Authored by Melissa Lozano
Mathematics
8th Grade
CCSS covered
Used 7+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tres recipientes cúbicos de 5 cm, 6 cm y 8 cm de lado respectivamente se llenan con agua. Si un centímetro cúbico (cm3) equivale a un mililitro, la cantidad de mililitros de agua que se tiene en los tres recipientes es:
19 mililitros
125 mililitros
240 mililitros
853 mililitros
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes sumas no da como resultado – 4?
6 +2
-4 + 3 + (-8) + 5
9 + (-8) + 3
7 + (-15) + 4
Tags
CCSS.7.NS.A.1D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La distancia que existe entre el cero y cualquier número entero en la recta numérica es:
El signo
El opuesto
El valor absoluto
El cuadrante
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La edad de Roberto es el triple de la de María más 8. Si la suma de ambas edades es 36,
¿Cuál es la edad de Roberto?
7 años.
14 años
28 años
29 años
Tags
CCSS.8.EE.C.8C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El resultado de la resta -12 - [((-3) - 4) - (-12)] es:
7
-7
-17
-21
Tags
CCSS.7.NS.A.1D
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿En cuál de las siguientes multiplicaciones el producto es incorrecto?
(- 4) (3) (-1) = 12
(- 5) (- 6) (2) (- 4) = - 240
(- 2) (6) (- 3) (- 1) = 36
(- 1)(- 12)(- 3)(- 7) = 252
Tags
CCSS.7.NS.A.2A
CCSS.7.NS.A.2B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La diferencia entre las edades de un padre y su hijo es de 21 años. Si la razón entre las dos edades es de 5 a 2, la edad del padre y del hijo respectivamente, es:
35 y 7 años.
35 y 14 años
55 y 22 años
49 y 14 años.
Tags
CCSS.8.EE.C.8C
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