CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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