
Calcolo a mente 2
Authored by Ersilia Murgolo
Mathematics
9th Grade
Used 2+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
moltiplicando più numeri il risultato potrà essere 0 (zero) ?
Si, se uno dei numeri è 0.
No
Si, se 0 è il primo numero.
Si, ma bisogna avere lo zero al numeratore.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Possiamo dividere per 0 (zero) ?
No.
Si, ma il risultato è un numero grandissimo.
Si, ma il risultato è un numero piccolissimo.
Si.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1/2 + 2/4 + 4/8 + 8/16
la somma è 4
la somma è 5
la somma è 2
la somma è 4
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Esegui queste operazioni : pensa un numero; raddoppialo; quindi aggiungi 2; dividi quello che hai ottenuto per 2; esegui la differenza tra il numero che hai ottenuto e quello che hai pensato; "il risultato è" :
1
il doppio del mio numero (che ho pensato)
2
è sempre diverso dipende dal numero che ho pensato.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Eseguendo i calcoli sul foglio indica la frazione generatrice, ridotta ai minimi termini, del numero decimale 3,25:
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
periodico misto
limitato
periodico semplice
intero
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
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