CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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