CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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