CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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