- 90 : 5 > 90 : 10
- $$90 : 5 = 18$$
- $$90 : 10 = 9$$
- $$18 > 9$$
- 48 : 4 < 52 : 4
- $$48 : 4 = 12$$
- $$52 : 4 = 13$$
- $$12 < 13$$
- 35 ⋅ 1 < 35 ⋅ 0 + 35
- $$35 \cdot 1 = 35$$
- $$35 \cdot 0 + 35 = 0 + 35 = 35$$
- $$35 = 35$$
- 35 + 1 > (35 + 0) ⋅ 1
- $$35 + 1 = 36$$
- $$(35 + 0) \cdot 1 = 35 \cdot 1 = 35$$
- $$36 > 35$$
Ответ: 90:5 > 90:10; 48:4 < 52:4; 35.1 < 35.0 +35; 35+1 > (35 + 0)・1