CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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