Fülle zurerst alle Lücken richtig aus und klicke dann auf "Prüfen"

a + a =	b + b + b =	a + 2a + 3a =
4a - a =	3 ⋅ 2a =	a ⋅ a =
a ⋅ a ⋅ a =	4a - 7a =	14a : 2 =
4 ⋅ 0,5 a =	2x + 4 x =	2x : 2x =
6x : 2 =	8x : x =	x ⋅ 0 =
0,5 ⋅ 10x =	4a ⋅ 2a =	15a - a =