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Diagnóstico: Operaciones Combinadas

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Prueba de razonamiento y operaciones

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Ecuador

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Diagnóstico: Operaciones Combinadas
 

Diagnóstico: Operaciones CombinadasOnline version

Prueba de razonamiento y operaciones

by Domenika Rosado
1

6 + 4 × 3 = ?

2

(8 - 3) × 4 = ?

3

2 + 3 × (6 - 2) = ?

4

(x^2 - y^2)/(x - y) con x=7, y=2 = ?

5

5 + 6 ÷ 3 × 2 = ?

6

En una clase hay 24 alumnos y se forman grupos de 3. ¿Cuántos grupos completos se forman?

7

15 - 2 × 4 + 6 = ?

8

Un artículo vale 45 y tiene un descuento del 10%. ¿Precio final?

9

Si A=4, B=3, (A+B)×(A-B) = ?

10

Si tarda 6 minutos en 3 ejercicios, ¿cuánto tarda en 5 ejercicios?

Explicación

Debes aplicar primero la multiplicación: 4×3=12, luego 6+12=18.

Primero restas 8-3=5, luego 5×4=20.

Resuelve paréntesis: 6-2=4; luego 3×4=12; 2+12=14.

x^2 - y^2 = (7^2-2^2)=45; (x-y)=5; 45/5=9.

Orden de operaciones: 6÷3=2; 2×2=4; 5+4=9.

24 ÷ 3 = 8 grupos exactos, sin sobras.

Primero 2×4=8; luego 15-8+6=13.

Descuento del 10%: 45×0.9 = 40.5.

(4+3)×(4-3)=7×1=7.

Proporcional: 6 minutos para 3, entonces 5 ejercicios ≈ (5/3)×6 = 10 minutos.

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