Optellen tot 100 zonder brug (T + E) oefening 2

Vul in!
70 + 5 = 90 + 3 =
50 + 4 = 30 + 7 =
40 + 4 = 20 + 8 =
60 + 5 = 80 + 7 =
50 + 6 = 80 + 4 =