Частина 1. Номер 14

Виконай дії.

2 + 5 = 7;
12 + 5 = 17;
32 + 5 = 37;
42 + 5 = 47;
32 + 15 = 47.

3 + 6 = 9;
23 + 6 = 29;
43 + 6 = 49;
63 + 6 = 69;
53 + 16 = 69.

7 – 1 = 6;
87 – 1 = 86;
67 – 1 = 66;
47 – 1 = 46;
17 – 11 = 6.

5 – 3 = 2;
75 – 3 = 72;
55 – 3 = 52;
35 – 3 = 32;
15 – 13 = 2.