
Verifica numeri razionali
Authored by maria gabriella russo
Mathematics
9th Grade
10 Questions
Used 7+ times

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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Semplifica le frazioni e riducile al minimo comune denominatore:
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Scrivi in ordine crescente le seguenti frazioni:
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quali delle seguenti frazioni sono state trasformate correttamente in numeri decimali?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quali dei seguenti numeri decimali periodici sono stati trasformati correttamente in frazioni?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quali delle seguenti frazioni corrispondono a numeri decimali periodici?
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Lungo una strada sono parcheggiate 27 automobili di colore blu, 9 di colore rosso e 39 di colore grigie.
Qual è la percentuale di auto rosse? E quale se si escludono le auto grigie?
15% ; 35%
25% ; 12%
21% ; 25%
12% ; 25%
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Risolvi il seguente problema utilizzando le proporzioni.
Determina le altezze di due amici sapendo che la somma delle loro stature è pari a 348,5 cm. e che le lunghezze stanno tra loro come 21: 20
170,5 ; 178
175,8 ; 172,7
170; 178,5
175 ; 173,5
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