...blok 3 contractwerk.gif hoofdrekenen... oefening 6

60 x 90 =
10 x 725 =
50 x 50 =
6 000 x 4 =
73 x 20 =
66 x 5 =
800 x 400 =
25 x 7 =
240 : 4 =
90 x 800 =