CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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