| d)
Supprime
les parenthèses puis calcule. |
1200
– (100 + 3) |
=
1200 – 100 – 3 = 1100 – 3 = 1097 |
737
+ (100 – 3) |
=
737 + 100 – 3 = 837 – 3 = 834 |
900
– (200 – 1) |
=
900 – 200 + 1 = 700 + 1 = 701 |
179
+ (21 + 37) |
=
179 + 21 + 37 = 200 + 37 = 237 |
208
– (100 – 5) |
=
208 – 100 + 5 = 108 + 5 = 113 |