CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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