CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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