División y Multiplicación de Números Enteros, Reales y Racionale

Quiz
•
Mathematics
•
8th Grade
•
Hard
Harley Cuesta
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuánto es (7 \times (-3))?
A) -21
B) 21
C) -10
D) 10
Answer explanation
La multiplicación de un número positivo por un número negativo resulta en un número negativo.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si (x = -4), ¿Qué valor tiene (2x)
A) 8
B) -8
C) 4
D) -2
Answer explanation
Multiplicamos el número negativo por 2, dando como resultado un número negativo.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Resuelve la siguiente expresión: ((-15) \div 3).
A) -45
B) 15
C) 5
D) -5
Answer explanation
((-15) \div 3 = -5)
La división de un número negativo por un número positivo resulta en un número negativo.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuánto es ( (-2) \times (-5))?
A) 10
B) -10
C) 7
D) -7
Answer explanation
((-2) \times (-5) = 10)
Al multiplicar dos números negativos da como resultado un número positivo.
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Resuelve: (12 \div (-4) + 3).
A) 0
B) 3
C) -3
D) -6
Answer explanation
12 \div (-4) = -3), entonces (-3 + 3 = 0)
Primero hacemos la división, luego sumamos. El resultado de la suma es 0.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si (b = 6), encuentra el valor de (-4b).
A) -24
B) 24
C) 10
D) -10
Answer explanation
(-4b = -4 \times 6 = -24)
Si multiplicamos el número positivo por -4, lo que nos da un número negativo.
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
¿Cuánto es (21 \div (-7) \times 3)?
A) 3
B) 9
C) -9
D) -3
Answer explanation
(21 \div (-7) = -3), entonces (-3 \times 3 = -9)
Dividimos y luego multiplicamos. El resultado es negativo.
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