Which is bigger .6444 or .6389? Here learners can see how well they read and compare decimal numbers into the thousandths. There are 18 problems to solve, the class will need to fill in each circle with a greater than, less than, or equals symbol. Note: The learning exercise states it is for grade four, but assesses Common Core standard 5.NBT.3 which is different than 4.NBT.3. The learning exercise may be more appropriate for learners in the fifth grade.