Ex-9

(1 X ) + (1 X ) =
1. 11 chewing-gums
2. 10 chewing-gum
3. 2 chewing-gums
4. 20 chewing-gums
(7 X ) + (2 X ) =
1. 27 chewing-gums
2. 72 chewing-gums
3. 70 chewing-gums
4. 9 chewing-gums
(3 X ) + (8 X ) =
1. 38 chewing-gums
2. 83 chewing-gums
3. 3 chewing-gums
4. 8 chewing-gums
(7 X ) + (4 X ) =
1. 47 chewing-gums
2. 74 chewing-gums
3. 4 chewing-gums
4. 7 chewing-gums
(5 X ) + (6 X ) =
1. 56 chewing-gums
2. 65 chewing-gums
3. 6 chewing-gums
4. 5 chewing-gums
(1 X ) + (6 X ) =
1. 61 chewing-gums
2. 16 chewing-gums
3. 60 chewing-gums
4. 7 chewing-gums
(7 X ) + (6 X ) =
1. 76 chewing-gums
2. 67 chewing-gums
3. 7 chewing-gums
4. 6 chewing-gums
(1 X ) + (8 X ) =
1. 81 chewing-gums
2. 18 chewing-gums
3. 1 chewing-gum
4. 8 chewing-gums
(9 X ) + (3 X ) =
1. 93 chewing-gums
2. 39 chewing-gums
3. 9 chewing-gums
4. 3 chewing-gums
(1 X ) + (0 X ) =
1. 1 chewing-gum
2. 10 chewing-gums
3. 0 chewing-gum
4. 30 chewing-gums

Ex-9 Recomposition nombres 0 → 99 Je recompose le nombre de chewing-gums à partir de la décomposition multiplicative. (classes des nombres mélangées)