1. Calculer :484 + (- 2 x - 12) - (228 x ¾) = ?
2. (12 x - 5) + (6 x - 9) + (- 7 x - 12) = ?
3. 111 + 222 + 333 + 444 + 555 = ?
a 1 655
b 1 675
c 1 665
d 1685
4. (2/3 x 3/4) + (4/5 x 5/6) = ?
5. (12/7 x - 6/5) + (8/7 x - 3/5) = ?
a - 86/35
b - 96/35
c - 106/35
d - 76/35
6. 1111 + 5555 + 2222 + 9999 + 113 = ?
a 18 900
b 19 100
c 19 000
d 20 000
