L'énoncé
Cet exercice est un QCM. Cocher la bonne réponse.
Tu as obtenu le score de
Question 1
\(\sqrt{49}=\)
$7$
$49$
$24,5$
$4,9$
Question 2
\(\sqrt {1000000} = \)
$10000$
$100$
\(100\sqrt{10}\)
$1000$
Question 3
\((\sqrt{50})^2\)
$25$
$50$
\(\sqrt{50}\)
\(50^2\)
Question 4
\(\sqrt{64}-\sqrt {25} =\)
$64-25$
$3$
\(\sqrt{39}\)
$39$
Question 5
\(\sqrt{0,04}=\)
$0.0002$
$2$
$0,2$
$0,02$
Question 6
$-\sqrt{81}=$
$9$
$-9$
$81$
Question 7
$\sqrt{-64}=$
$8$
$-8$
$64$
Impossible.
Question 8
$\sqrt{121}+\sqrt{36}=$
$12+6$
$11+6$
$157$
$\sqrt{157}$
Question 9
$\sqrt{0,000009}=$
$0,3$
$0,03$
$0,003$
Question 10
$\sqrt{441}= \sqrt{9 \times 49}= \sqrt{9} \times \sqrt{49}=$...
$9 \times 49$
$27$
$3 \times 7$
$64 \times 49$