CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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