Aftrekken tot 100 zonder brug (TE - T = TE) oefening 1

33 - 10 =
58 - 20 =
45 - 30 =
28 - 10 =
53 - 10 =
39 - 20 =
46 - 20 =
59 - 30 =
48 - 40 =
34 - 10 =