CHRONO

2 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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