Postupně vypočítej zadané příklady.

5 . 5 =	4 . = 20	. 7 = 35	2 . 5 =
5 . = 15	. 5 = 30	5 . 9 =	. 5 = 40
5 . 2 =	5 . = 20	. 5 = 15	9 . 5 =
10 . = 50	. 6 = 30	5 . 5 =	. 5 = 0
5 . = 5	4 . 5 =	. 5 = 35	30 = . 5
20 = 5 .	40 = . 5	= 7 . 5	45 = 5 .