CHRONO

38 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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