Quiz about Test MATEMATICA - Openday Liceo Scientifico "C. Pisacane" Padula

Question 1

Indica la soluzione corretta

$$2^{100\ }-\ 2^{99}$$ = ?

Accepted Answer

$$2^{99}$$

Answer

$$2$$

Answer

$$2^{100}$$

Answer

$$2^{98}$$

Question 2

$$\left(\frac{21}{3}\right)\cdot\left(\frac{3}{21}\right)=$$

Accepted Answer

$$1$$

Answer

$$7$$

Answer

$$49$$

Answer

$$14$$

Question 3

Indica il valore di $$x$$

Accepted Answer

$$30°$$

Answer

$$15°$$

Answer

$$60°$$

Answer

$$90°$$

Question 4

Se

$$2+3=10$$

$$3+1=12$$

$$6+4=?$$

Accepted Answer

$$60$$

Answer

$$40$$

Answer

$$52$$

Answer

$$72$$

Question 5

Se

$$x+y=3$$

$$x-y=1$$

$$4xy\ =\ ?$$

Accepted Answer

$$8$$

Answer

$$6$$

Answer

$$10$$

Answer

$$4$$

Question 6

Se

$$18=81$$ $$71=64$$ $$51=36$$ $$32\ =\ ?$$

Accepted Answer

$$25$$

Answer

$$23$$

Answer

$$18$$

Answer

$$12$$

Question 7

Quale coppia di numeri soddisfa il sistema:

$$x+y=5\ \ \ \ \ \ \ \ \ x−y=3$$

Accepted Answer

$$x=4,\ \ y=1$$

Answer

$$x=3,\ \ y=2$$

Answer

$$x=2,\ \ y=3$$

Answer

$$x=5,\ \ y=0$$

Test MATEMATICA - Openday Liceo Scientifico "C. Pisacane" Padula