Àlgebra Reforç matemàtiques 2nESO
Quiz
•
Mathematics
•
8th Grade
•
Medium
Xavi Riera
Used 9+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Tria l'opció correcta del següent enunciat:
"El quadrat d'un nombre més quatre unitats"
2x + 4
x2 + 4
x2 + 4x
2x + 4x
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcula el valor numèric de l'expressió:
2x2+ 8
quan x= 3
26
44
14
20
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcula el valor numèric de l'expressió:
5a - 2b
quan a= 1 i b= 2.
6
8
1
3
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Del següent monomi digues el coeficient, la part literal i el grau:
-3ab2c
coeficient -3, part literal ab2c i grau 4.
coeficient 3, part literal abc i grau 3.
coeficient -3, part literal abc i grau 4.
coeficient 3, part literal ab2c i grau 2.
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Assenyala l'opció correcta:
Dos monomis són semblants quan tenen el mateix coeficient, així 5m2 i 5m són semblants.
Dos monomis són semblants quan tenen la mateixa part literal, així 5m2 i 37m són semblants.
Dos monomis són semblants quan tenen la mateixa part literal, així 35m2 i 17m2 són semblants.
Dos monomis són semblants quan tenen el mateix grau, tot i que no sigui igual ni el coeficient ni la part literal, com per exemple 5m2 i 18x2.
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
L’Adrià, que té 64 llapis, té el doble de llapis que la Llúcia; la Llúcia en té el doble que en Max, i en Max en té el doble que la Diana. Quants llapis tenen en total?
120
123
117
960
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Si l’edat del meu amic Pau és de x anys, expressa en llenguatge algebraic l’edat que tenia fa 5 anys.
5x
x - 5
5 - x
x5
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