CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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