CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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