Consigne
corrigé |
Les résultats des calculs suivants sont
des nombres relatifs
Série: 1 |
SOS Cours |
|
résultat |
x |
|
|
|
(+7)+(+
4) = x |
x = (+11) |
|
(+7)+(-
4) = x |
x =(+3) |
|
(-7)+(+
4) = x |
x =(-3) |
|
(-7)+(-
4) = x |
x =(-11) |
|
|
|
|
(+7)-(+
4) = x |
x =(+3) |
|
(+7)-(-
4) = x |
x =(+11) |
|
(-7)-(+
4) = x |
x =(-11) |
|
(-7)-(-
4) = x |
x =(-3) |
|
|
|
|
(+7)(+4) = x |
x = ( +28) |
|
(+7)(-4) = x |
x = ( -28) |
|
(-7)(-4) = x |
x = ( +28) |
|
(-7)(+4) = x |
x = ( -28) |
|
|
|
|
= x |
x = (+1,75) |
|
= x |
x = (-1,75) |
|
= x |
x = (+1,75) |
|
= x |
x = (+1,75) |
|
= x |
x =(+ ) |
|
= x |
x =(- ) |
|
= x |
x =(+ ) |
|
= x |
x =(- ) |
|
|
|
|
Série: 2 |
SOS Cours |
|
Compléter les opérations |
|
|
Colonne 1 |
Colonne 2 |
Colonne 3 |
1-…
= 1 |
1- x = 1 |
x =0 |
1 - 1
=….. |
1-1 = x |
x =0 |
5 - ….. = 8 |
5 - x = 8 |
x = (-3) |
10 - ……= 17 |
10 - x = 17 |
x =(-7) |
32 -…. .=
43 |
32 - x = 43 |
x = (-11) |
136 - ……..=
237 |
136 - x = 237 |
x =101 |
359 - …… =
598 |
359 - x
= 598 |
x =(-239) |
……. - 2384
= 6732 |
x - 2384
= 6732 |
x =9116 |
Cas: 63 -
…… = 56 |
Cas: 63 -
x =
56 |
x =
7 |
Série: 3 |
SOS Cours |
|
Résoudre |
|
|
7+
x =
1 |
|
X = -6 |
7x = 28 |
|
X=
4 |
7
-x =
3 |
|
X = 4 |
= 3 |
|
X= 12 |
= 4 |
|
X = 7 |
Série: 4 |
SOS Cours |
|
Résoudre |
|
Résultat sous forme décimale ŕ 0.01
prés |
7,2 + 4,
8 = x |
|
|
7, 24, 8 = x |
|
|
7, 2- 4,
8 =
x |
|
|
= x |
|
|
= x |
|
|
SOS Cours |
|
Résoudre : |
|
|
5,3x = 26,5 |
|
X = 5 |
6x -3 +
15x = 17x -3 |
|
X = 0 |
5(x-4) =
4 ( 2x+1) - 4 |
|
X = - 20 /3 |
5(2x+1)
–3x +4 = 6 |
|
X = -3/7 |
2,5 x
–3,7 = 2,3 (5 – 4,2x ) |
|
X = |