CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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