CHRONO

45 s.

Calculer des expressions comportant des parenthèses.

CHRONO

0 s.
5 x (4 - 2) =
(5 - 1) - 3 =
(4 x 6) + 9 =
5 - (6 - 3) =
(9 - 6) - 1 =
(7 x 8) - 5 =
(7 x 7) - 1 =
(6 + 5) - 5 =
(9 - 4) x 5 =
6 - (2 + 3) =
(5 - 2) - 3 =
(9 x 3) - 4 =
7 - (1 + 4) =
(9 - 4) x 7 =
2 x (4 + 3) =
(3 x 5) + 5 =
7 - (4 - 3) =
5 x (4 + 4) =
(8 x 5) - 8 =
(1 + 1) x 1 =