CHRONO

45 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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