Formules Latex :
6 + 2 = 8 {\displaystyle 6+2=8\,}
( a + b ) + c = a + ( b + c ) {\displaystyle (a+b)+c=a+(b+c)\,}
a + b = b + a {\displaystyle a+b=b+a\,}
a + 0 = a {\displaystyle a+0=a\,}
6 − 2 = 4 {\displaystyle 6-2=4\,}
a − b = a + ( − b ) {\displaystyle a-b=a+(-b)\,}
a − a = 0 {\displaystyle a-a=0\,}
a − 0 = a {\displaystyle a-0=a\,}
6 ∗ 2 = 12 {\displaystyle 6*2=12\,}
( a ∗ b ) ∗ c = a ∗ ( b ∗ c ) {\displaystyle (a*b)*c=a*(b*c)\,}
a ∗ b = b ∗ a {\displaystyle a*b=b*a\,}
a ∗ 1 = a {\displaystyle a*1=a\,}
a ∗ 0 = 0 {\displaystyle a*0=0\,}
6 / 2 = 3 {\displaystyle 6/2=3\,}
5 / 2 = 2 , 5 {\displaystyle 5/2=2,5\,}
