CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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