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7th
grade

Mathematics

49%

accuracy

160

plays

User image

5 years

Mathematics

7th

grade

Rdacina patrata a unui numar rational patrat perfect

user

160
plays

9 questions

9 questions

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1. Multiple Choice
2 minutes
1 pt
$Calculand$
$\sqrt{4}+\sqrt{25}-\sqrt{49}\$

$obtinem\ :$
-20
$\sqrt{20}$
$-\sqrt{20}$
0
2. Multiple Choice
3 minutes
1 pt
$Calculand\ \sqrt{10^2-8^2}\ obtinem:$

$2^2$
$2$
$6$
$8$
3. Multiple Choice
3 minutes
1 pt
$Calculand\ \ 8+\sqrt{8+\sqrt{8^2}}obtinem\ :$
$24$
$16$
$12$
$10$
4. Multiple Choice
3 minutes
1 pt
$Calculand:\sqrt{5^2\cdot3^4\cdot2^6}obtinem:$
$360$
$340$
$320$
$280$
5. Multiple Choice
3 minutes
1 pt
$Calculand\ \sqrt{5\ \frac{4}{9}}+\sqrt{0,\left(4\right)}obtinem:$
$3$
$6$
$9$
$12$
6. Multiple Choice
3 minutes
1 pt
Folosind algoritmul de extragere a
radacinii patrate pentru: $\sqrt{3481}$
obtinem:
$29$
$39$
$49$
$59$
7. Multiple Choice
5 minutes
1 pt
Folosind algoritmul de extragere a
radacinii patrate pentru: $\sqrt{5.3361}$
obtinem:
$2,31$
$2,41$
$2,61$
$2,71$
8. Multiple Choice
5 minutes
1 pt
$\ Calculand\sqrt{\left(1+2+3+...+50\right)-25\cdot2}$
$obtinem:$
$15$
$25$
$35$
$45$
9. Multiple Choice
5 minutes
1 pt
$x\ din\ proportia\$

$\frac{\sqrt{400-64\cdot\sqrt{16}}}{x}=\frac{2\cdot\sqrt{81+7\cdot3^2}}{2\ \frac{1}{4}\cdot\sqrt{1,\left(7\right)}}$

$este\ egal\ cu\ :$
$\frac{3}{2}$
$\frac{2}{3}$
$\frac{5}{2}$
$\frac{2}{5}$
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