CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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