
Prueba de matemática. Octavo grado
Authored by Carla Soto
Mathematics
8th Grade
Used 4+ times

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7 questions
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1.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Al simplificar 3x+5y+8x+10y, se obtiene
11x+5y
11x+15y
26xy
13x+15y
2.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Al resolver la multiplicación (3x)(2y) se obtiene:
6x
6y
6xy
5xy
3.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
18x
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
La solución de la multiplicación(x-2)(x+2) es:
x-2
x+2
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Al efectuar la división (4x-12)/4, el cociente obtenido es :
x+3
x-3
4x-3
x-4
6.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Al efectuar la ecuación de primer grado 5x-6=4, el cociente obtenido es :
-6
6
4
-4
7.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Elías tenia 20 bolas, unas rojas y otras azules. Si pierde 4 bolas de cada color , entonces el triple del número de bolas azules equivaldría al número de bolas rojas. ¿Cuántas bolas rojas tenía?
8
10
15
13
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