200. Täida lüngad.
10 – = 1
10 – = 4
10 – = 5
10 – = 8
10 – = 7
10 – = 6
10 – = 3
10 – = 9
10 – = 2
202. Arvuta.
80 – 30 =
70 – 50 =
90 – 10 =
60 – 40 =
50 – 20 =
70 – 40 =
40 – 10 =
80 – 60 =
30 – 20 =
50 – 30 =
80 – 60 =
90 – 80 =
90 – 90 =
80 – 70 =
20 – 10 =