Rapporti, proporzioni, percentuali
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
Standards-aligned
Nicola Maggi
Used 32+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Due segmenti sono lunghi rispettivamente 30 e 50 cm. Qual è il loro rapporto?
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se in un disegno in scala 1:500.000 misuro con il righello una distanza di 25 cm, a che distanza corrisponde nella realtà?
km
km
cm
cm
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Alle gare di matematica, in Seconda B si sono qualificati 3 studenti su 21.
Nella Seconda A, se ne sono qualificati 4 studenti su 29. Quale classe ha avuto più alunni qualificati?
Seconda B
Seconda A
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dati i numeri 2 - 5 - 10 - 25
Quale fra queste rappresenta una corretta proporzione? (suggerimento: pensa alla proprietà fondamentale...)
2 : 5 = 25 : 10
10 : 2 = 25 : 5
2 : 25 = 5 : 10
5 : 2 = 10 : 25
Tags
CCSS.7.RP.A.2A
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Data la proporzione , quanto vale X ?
2
8
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Data la proporzione continua 32 : x = x : 8
x = 16
x = 32
x = 12
x = 15
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcola il valore di x, y e z nella seguente catena di rapporti:
x : 4 = y : 5 = z : 8
sapendo che
x = 60, y = 75, z = 90
x = 30, y = 45, z = 60
x = 25, y = 80, z = 100
x = 15, y = 25, z = 35
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