Divizibilitate
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• Question 1
300 seconds
Q.

Suma numerelor prime intre 80 si 100 este:.....

500

300

269

700

• Question 2
300 seconds
Q.

(28,42,63)= ....

14

7

2

6

• Question 3
300 seconds
Q.

in scrierea  $\overline{35x}\ ⋮\ 2$  , x=

2,4,8

0,2,4,6,8

6,8

4

• Question 4
300 seconds
Q.

Cate numere de forma  $\overline{12ab}\ ⋮\ 5\ si\ 3$

5

3

10

7

• Question 5
900 seconds
Q.

Fie multimile: A= {n $\epsilon$  $N^{\cdot}$ |x  $⋮$  3, x < 19 } si B= {y $\epsilon$  N |18  $⋮$  y}. A $\cap$  B= {..................}

3,6,9,15,18

3,6,9,12

3,18

3,6,9,18

• Question 6
300 seconds
Q.

$In\ scrierea\ 2^{n+3}+2^{n+1}+2^n=88,\ n=.....$

3

6

2

4

• Question 7
120 seconds
Q.

Multimea divizorilor lui 42 este: {.................}

1,2,3,4,5,6,7,21

1,42

1,2,3,6,7,14,21,42

2,3,6,7,14,21,42

• Question 8
300 seconds
Q.

Valoarea raportului numerelor 1,25 si 1250 este.....

0,1

0,001

0,0001

0,00001

• Question 9
120 seconds
Q.

$Termenul\ necunoscut\ din\ \frac{6,\left(4\right)}{x}=8,\ este\ x=......$

$\frac{29}{36}$

$\frac{36}{29}$

29

36

• Question 10
60 seconds
Q.

$In\ scrierea\ \ \frac{2}{17}=\frac{18}{153}\ ,\ extremii\ sunt.......$