The spell Grease does the following:
Slick grease covers the ground in a 10-foot square centered on a point within range and turns it into difficult terrain for the duration. A creature that enters the area or ends its turn there must also succeed on a Dexterity saving throw or fall prone.
Since the affected area is only 10-foot long, can a creature with 10 or more Strength jump over the greased area, thus avoiding both the Dexterity saving throw and the difficult terrain?
For reference, the rules for Long Jump are the following:
When you make a long jump, you cover a number of feet up to your Strength score if you move at least 10 feet on foot immediately before the jump.