1) Compléter les opérations en s'approchant le plus possible du nombre.
|
Exemple : 20 = (6 X 3)+2 |
||
|
17 = (4 x 4) + 1 |
57 = (8 x 7) + 1 |
7 = (3 x 2) + 1 |
|
38 = (4 x 9) + 2 |
31 = (6 x 5) + 1 |
13 = (2 x 6) + 1 ou (4 x 3) + 1 |
|
29 = (4 x 7) + 2 |
44 = (6 x 7) + 2 |
47 = (9 x 5) + 2 |
|
84 = (9 x 9) + 3 |
69 = (8 x 8) + 5 |
89 = (9 x 9) + 8 |
|
61 = (8 x 7) + 5 |
33 = (8 x 4) + 1 |
74 = (9 x 8) + 2 |
2) Compléter les divisions.
|
25 |
: |
5 |
= |
5 |
|
|
32 |
: |
4 |
= |
8 |
|
|
48 |
: |
6 |
= |
8 |
|
|
54 |
: |
9 |
= |
6 |
|
|
12 |
: |
2 |
= |
6 |
|
|
80 |
: |
10 |
= |
8 |
|
|
21 |
: |
3 |
= |
7 |
|
|
16 |
: |
8 |
= |
2 |
|
|
81 |
: |
9 |
= |
9 |
|
|
63 |
: |
9 |
= |
7 |
|
|
40 |
: |
8 |
= |
5 |
|
|
20 |
: |
2 |
= |
10 |
|
|
28 |
: |
7 |
= |
4 |
|
|
36 |
: |
6 |
= |
6 |
|
|
420 |
: |
10 |
= |
42 |
|
150 |
: |
10 |
= |
15 |
|
70 |
: |
7 |
= |
10 |
|
860 |
: |
10 |
= |
86 |
|
40 |
: |
10 |
= |
4 |
|
630 |
: |
10 |
= |
63 |
|
2400 |
: |
100 |
= |
24 |
3) Effectuer les divisions.
|
28 |
7 |
|
35 |
5 |
|
45 |
9 |
|
64 |
8 |
|
0 |
4 |
|
0 |
7 |
|
0 |
5 |
|
0 |
8 |
|
13 |
2 |
44 |
8 |
21 |
5 |
32 |
6 |
|||
|
1 |
6 |
|
4 |
5 |
|
1 |
4 |
|
2 |
5 |