CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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