CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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