4.
Looking at the thermometers, the left one has a measure of 20, while the right one has a measure of 60.
Since 20 is smaller than 60, we can write the following inequality:
5.
Looking at the thermometers, the left one has a measure of -7, while the right one has a measure of -3.
Since -7 is smaller than -3, we can write the following inequality: