CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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