CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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