Решение:
1. $$367 \times 48 = 17616$$
2. $$1442 : 7 = 206$$
3. $$50100 - 1426 = 48674$$
4. $$22400 \times 20 = 448000$$
5. Решим уравнение:
$$a + 970 = 65 \times 32$$
$$a + 970 = 2080$$
$$a = 2080 - 970$$
$$a = 1110$$
Ответ:
$$367 \times 48 = 17616$$
$$1442 : 7 = 206$$
$$a = 1110$$
$$50100 - 1426 = 48674$$
$$22400 \times 20 = 448000$$