4. Сравни. 5.4 - 18 * 6.4 - 15
15:5* 24:8
45 + 45 * 45 + 54
54 + 4 * 54 - 5
3.5 + 67 * 90 - 6.2
50 - (35 - 15) * 4.5 + 10
100 - 20 * 100 - 30
100 - 8.3 * 20 +14:7
​

5•4-18 < 6•4-15 (2<5)
15:5 = 24:8 (3=3)
45+45 < 45+54 (90<99)
54+4 > 54-5 (58>49)
3•5 + 67 > 90-6•2 (82>78)
50-(35-15) = 4•5+10 (30=30)
100-20>100-30 (80>70)
100-8•3 > 20+14:7 (76>22)