CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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