Quiz about Verifica numeri relativi

Question 1

L'insegnante chiede di scrivere una coppia di numeri opposti. Secondo te chi ha scritto correttamente la coppia di numeri richiesta? (una sola risposta corretta)

Accepted Answer

Sandro

$$-\frac{5}{2}$$ e +2,5

Answer

Andrea

-7 e $$+\frac{7}{2}$$

Answer

Giada

$$-\frac{8}{3}$$ e $$+\frac{3}{8}$$

Question 2

Seleziona tutte le caselle che contengono una coppia di numeri concordi

Accepted Answer

+19 e +3,5

Accepted Answer

$$-\frac{3}{2}$$ e $$-\frac{4}{3}$$

Accepted Answer

-7 e $$-\frac{1}{3}$$

Answer

-6 e $$+\frac{2}{3}$$

Answer

+15 e -18

Question 3

Seleziona tutte le caselle che contengono una coppia di numeri discordi

Accepted Answer

$$-\frac{3}{2}$$ e $$+\frac{4}{3}$$

Accepted Answer

+1,3 e $$-\frac{1}{3}$$

Answer

+5,5 e $$+\frac{4}{3}$$

Answer

-11 e -3

Answer

$$+\frac{11}{7}$$ e +18

Question 4

Seleziona tutti i numeri superiori a -3

Accepted Answer

Accepted Answer

-2,9

Accepted Answer

-1

Answer

-4

Answer

-3,02

Question 5

$$\left(-6\right)^2=$$

Accepted Answer

36

Answer

-36

Answer

12

Answer

-12

Question 6

$$\left(-4\right)^3=$$

Accepted Answer

-64

Answer

+64

Answer

-12

Answer

+12

Question 7

$$\left(-\frac{2}{3}\right)^3=$$

Accepted Answer

$$-\frac{8}{27}$$

Answer

$$-\frac{6}{9}$$

Answer

$$+\frac{6}{9}$$

Answer

$$+\frac{8}{27}$$

Question 8

$$4^{-2}=$$

Accepted Answer

$$+\frac{1}{16}$$

Answer

-16

Answer

+8

Answer

$$-\frac{8}{2}$$

Question 9

$$\sqrt[]{-36}=$$

Accepted Answer

impossibile

Answer

-6

Answer

+6

Answer

$$+\frac{1}{6}$$

Question 10

$$\sqrt[3]{-27}=$$

Accepted Answer

-3

Answer

impossibile

Answer

+3

Answer

$$+\frac{1}{3}$$

Question 11

Svolgi sul foglio protocollo la seguente espressione e indica il risultato corretto

$$\left\{\left[\left(\frac{3}{2}+\frac{1}{4}\right)\cdot\left(\frac{9}{7}-\frac{5}{4}\right)-\left(\frac{1}{8}+3\right)\right]\cdot\left(\frac{3}{7}-1\right)-\left(2+\frac{1}{3}\right)\right\}:\ \frac{21}{6}=$$

Accepted Answer

$$-\frac{1}{6}$$

Answer

$$+\frac{1}{6}$$

Answer

0

Answer

$$+\frac{4}{7}$$

Question 12

Svolgi sul foglio protocollo la seguente espressione e indica il risultato corretto

$$\left[\left(1-\frac{1}{5}\right)\div\left(-\frac{11}{5}\right)\right]^2\div\left[\left(\frac{5}{6}-\frac{3}{4}\right)\div\left(1+\frac{1}{8}-\frac{2}{3}\right)\right]^2\cdot\left(\frac{3}{5}-\frac{4}{15}\right)^2=$$

Accepted Answer

$$+\frac{4}{9}$$

Answer

$$-\frac{4}{9}$$

Answer

$$+\frac{3}{2}$$

Answer

$$-\frac{3}{2}$$

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