Descompón en factores primos:
a) 50
b) 60
c) 90
1 ESO - U03 - AE
Quiz
•
Mathematics
•
7th Grade
•
Hard
JUAN JOSÉ FERNÁNDEZ PARRILLA
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Descompón en factores primos:
a) 50
b) 60
c) 90
a) 50 = 2 · 53
b) 60 = 2 · 3 · 5
c) 90 = 22 · 32 · 54
a) 50 = 2 · 52
b) 60 = 22 · 3 · 5
c) 90 = 2 · 32 · 5
a) 50 = 2 · 52
b) 60 = 2 · 3 · 5
c) 90 = 22 · 32 · 53
a) 50 = 2 · 52
b) 60 = 22 · 3 · 5
c) 90 = 2 · 32 · 54
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Descompón en factores primos:
a) 36
b) 48
c) 100
a) 36 = 22 · 32
b) 48 = 24 · 3
c) 100 = 22 · 52
a) 36 = 23 · 33
b) 48 = 23 · 33
c) 100 = 22 · 72
a) 36 = 22 · 42
b) 48 = 24 · 33
c) 100 = 23 · 53
a) 36 = 23 · 32
b) 48 = 25 · 3
c) 100 = 22 · 53
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los trenes a Miramar salen cada 18 min, y los de Arandilla, cada 24 min. Si son las 15 h
45 min, y salen a la vez, ¿cuándo volverán a coincidir?
mcm (18, 24) = 72
Cada 72 minutos coinciden los trenes. Por lo tanto, después de las 15:45, volverán a coincidir
a las 16:57.
mcm (18, 24) = 82
Cada 82 minutos coinciden los trenes. Por lo tanto, después de las 15:45, volverán a coincidir
a las 20:57.
MCD (18, 24) = 6
Cada 6 minutos coinciden los trenes. Por lo tanto, después de las 15:45, volverán a coincidir
a las 19:57.
MCD (18, 24) = 16
Cada 6 minutos coinciden los trenes. Por lo tanto, después de las 15:45, volverán a coincidir
a las 21:57.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Busca el menor número tal que al dividirlo entre 10 y entre 12 deja un resto de 5.
mcm (10, 12) = 120
→ El número será 120.
MCD (10, 12) = 30
→ El número será 30.
MCD (12, 12) = 12
→ El número será 10.
mcm (10, 12) = 60
→ El número será 65.
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcula todos los divisores de 90:
Div (90) = {1, 2, 3, 5, 10, 15, 18, 30, 45, 90}
Div (90) = {1, 2, 3, 5, 6, 9, 10, 18, 30, 45, 90}
Div (90) = {1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 90}
Div (90) = {1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90}
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcula todos los divisores de 60:
Div (60) = {1, 2, 4, 5, 6, 10, 12, 15, 20, 30 y 60}
Div (60) = {1, 2, 3, 4, 5, 6, 10, 12, 15, 20 y 60}
Div (60) = {1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 y 60}
Div (60) = {1, 2, 3, 4, 5, 6, 10, 20, 30 y 60}
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Busca todos los números primos menores que 30:
2 - 3 - 5 - 7 - 11 - 13 - 17 - 23 - 29
2 - 3 - 5 - 7 - 11 - 17 - 19 - 23 - 29
2 - 3 - 5 - 7 - 11 - 13 - 17 - 19 - 23 - 29
2 - 3 - 5 - 7 - 11 - 13 - 17 - 19 - 23
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