Explications pour comprendre les Maths (école primaire et collège)

Table de Pythagore addition en base vingt (vicésimal)

Table de Pythagore pour l'addition en base vingt

+ 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J10
0 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J10
1 1 2 3 4 5 6 7 8 9 A B C D E F G H I J1011
2 2 3 4 5 6 7 8 9 A B C D E F G H I J101112
3 3 4 5 6 7 8 9 A B C D E F G H I J10111213
4 4 5 6 7 8 9 A B C D E F G H I J1011121314
5 5 6 7 8 9 A B C D E F G H I J101112131415
6 6 7 8 9 A B C D E F G H I J10111213141516
7 7 8 9 A B C D E F G H I J1011121314151617
8 8 9 A B C D E F G H I J101112131415161718
9 9 A B C D E F G H I J10111213141516171819
A A B C D E F G H I J101112131415161718191A
B B C D E F G H I J101112131415161718191A1B
C C D E F G H I J101112131415161718191A1B1C
D D E F G H I J101112131415161718191A1B1C1D
E E F G H I J101112131415161718191A1B1C1D1E
F F G H I J101112131415161718191A1B1C1D1E1F
G G H I J101112131415161718191A1B1C1D1E1F1G
H H I J101112131415161718191A1B1C1D1E1F1G1H
I I J101112131415161718191A1B1C1D1E1F1G1H1I
J J101112131415161718191A1B1C1D1E1F1G1H1I1J
10101112131415161718191A1B1C1D1E1F1G1H1I1J20