CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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