true
true
true
7
Addition, multiplication et division
18
L'inverse de $$27$$ est ..... ?
&&$$-27$$&&$$72$$&&
$$\frac{1}{27}$$
&&
$$\frac{-1}{27}$$
&&
$$\frac{1}{-27}$$
&&
3
qcm1
L'opposé de $$27$$ est ..... ?
&&$$-27$$&&$$72$$&&$$-72$$&&
$$\frac{1}{27}$$
&&$$0$$&&
1
qcm1
$$\frac{2}{3}\div5= ...\ ?$$
2/15
frac
$$\frac{2}{3}\times5= ...\ ?$$
10/3
frac
$$\frac{-5}{7}\div\frac{3}{2}= ...\ ?$$
-10/21
frac
$$\frac{5}{7}\div\frac{1}{3}= ...\ ?$$
15/7
frac
$$\frac{9}{-2}\div(-5)= ...\ ?$$
9/10
frac
$$\frac{-5}{7}\times\frac{3}{2}= ...\ ?$$
-15/14
frac
$$\frac{3}{7}\times\frac{5}{2}= ...\ ?$$
15/14
frac
$$\frac{-3}{-7}\times\frac{-5}{2}= ...\ ?$$
15/-14
frac
$$\frac{2}{7}+\frac{3}{7}=... ?$$
5/7
frac
$$\frac{8}{11}+\frac{-5}{11}=... ?$$
3/11
frac
$$\frac{1}{2}+\frac{1}{4}=... ?$$
3/4
frac
$$\frac{3}{10}+\frac{2}{5}=... ?$$
7/10
frac