CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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