Exercice 8:
Complète
les égalités ci-dessous:
3
x
3
=
9
9
x
=
81
3
x
4
=
x
7
=
35
8
x
5
=
7
x
8
=
x
6
=
36
x
3
=
24
7
x
=
21
5
x
4
=
4
x
8
=
6
x
8
=
Vérifier
OK
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