1) Compléter les tables de multiplication.
|
6 |
X |
2 |
= |
12 |
|
|
5 |
X |
4 |
= |
20 |
|
|
7 |
X |
3 |
= |
21 |
|
|
5 |
X |
5 |
= |
25 |
|
|
8 |
X |
6 |
= |
48 |
|
|
6 |
X |
3 |
= |
18 |
|
|
5 |
X |
9 |
= |
45 |
|
|
7 |
X |
8 |
= |
56 |
|
|
4 |
X |
8 |
= |
32 |
|
|
8 |
X |
6 |
= |
48 |
|
|
4 |
X |
5 |
= |
20 |
|
8 |
X |
9 |
= |
72 |
|
4 |
X |
4 |
= |
16 |
|
6 |
X |
7 |
= |
42 |
|
9 |
X |
6 |
= |
54 |
2) Compléter en choisissant le nombre qui permet d’approcher le plus près du nombre.
|
Exemple : 26 > 5 X 5 |
28 > 9 X 3 |
17 > 5 X 3 |
|
25 > 3 X 8 |
13 > 2 X 6 |
68 > 9 X 7 |
|
30 > 7 X 4 |
44 > 5 X 8 |
9 > 1 X 5 |
|
16 > 5 X 3 |
58 > 7 X 8 |
88 > 9 X 9 |
|
7 > 2 X 3 |
8 > 3 X 2 |
33 > 8 X 4 |
|
37 > 4 X 9 |
47 > 8 X 5 |
11 > 3 X 3 |
3) Compléter les divisions.
|
Exemple : 3 X 6 = 20 → 20 : 3 = 6 |
||||||||||
|
2 |
X |
5 |
= |
10 |
→ |
10 |
: |
2 |
= |
5 |
|
9 |
X |
2 |
= |
18 |
→ |
18 |
: |
9 |
= |
2 |
|
4 |
X |
3 |
= |
12 |
→ |
12 |
: |
4 |
= |
3 |
|
3 |
X |
7 |
= |
21 |
→ |
21 |
: |
3 |
= |
7 |
|
8 |
X |
3 |
= |
24 |
→ |
24 |
: |
8 |
= |
3 |
|
5 |
X |
3 |
= |
15 |
→ |
15 |
: |
5 |
= |
3 |
|
4 |
X |
5 |
= |
20 |
→ |
20 |
: |
4 |
= |
5 |