CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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