Chapitre 6Calcul littéral |
| a)
|
Calcule en expliquant ton raisonnement. |
| 4
. 17 = |
............................................................................................................ |
| 23
. 6 = |
............................................................................................................ |
| 72
. 11 = |
............................................................................................................ |
| 26
. 9 = |
............................................................................................................ |
| 101
. 27 = |
............................................................................................................ |
| 99
. 57 = |
............................................................................................................ |
| 28
. 1001 = |
............................................................................................................ |
| 17
. 15 = |
............................................................................................................ |
|
b)
|
Calcule en trouvant un procédé simple. |
| 6
. 8 + 6 .
2 = |
............................................................................................................ |
| 21
. 7 + 21 .
3 = |
............................................................................................................ |
| 85
. 17 + 17 .
15 = |
............................................................................................................ |
| 8
. 110 + 15 .
8 = |
............................................................................................................ |
| 39
. 7,5 + 39 .
2,5 = |
............................................................................................................ |
|
c)
|
Calcule rapidement. |
|
31
. 9 =
|
............................
|
12
. 101 =
|
............................
|
2,3
. 11 =
|
............................
|
|
35
. 11 =
|
............................
|
27
. 99 =
|
............................
|
4,5
. 9 =
|
............................
|
|
49
. 101 =
|
............................
|
15
. 12 =
|
............................
|
1,2
. 101 =
|
............................
|
|
17
. 8 =
|
............................
|
9
. 140 =
|
............................
|
2,3
. 99 =
|
............................
|
|
8
. 19 =
|
............................
|
11
. 180 =
|
............................
|
999
. 1,8 =
|
............................
|
2
. 12 + 8 .
12 = |
............................ |
2,5
. 17 + 7,5 .
17 = |
............................ |
7
. 17 + 3 .
17 = |
............................ |
84
. 8,1 + 84 .
1,9 = |
............................ |
89
. 52 + 11 .
52 = |
............................ |
0,6
. 15 + 0,4 .
15 = |
............................ |
14
. 8 + 8 .
86 = |
............................ |
9,1
. 54 + 0,9 .
54 = |
............................ |
75
. 19 + 75 = |
............................ |
2,3
. 3,5 + 2,3 .
6,5 = |
............................ |
|
d)
|
Calcule en trouvant un procédé simple. |
|
24
. 3 + 12 .
4 =
|
............................................................................................................ |
|
63
. 30 + 21 .
10 =
|
............................................................................................................ |
|
75
. 12 + 50 .
32 =
|
............................................................................................................ |
Vos
remarques sont les bienvenues.
