On a number line, 2.3 is to the right of 2.1, indicating it is greater; hence, 2.1 is less than 2.3.
To determine which of the numbers 2.3 or 2.1 is greater, we can visualize them on a number line.
Both numbers are between 2 and 3, with 2.1 being closer to 2 and 2.3 being farther away from 2.
Since numbers on a number line increase from left to right, 2.3 is to the right of 2.1, indicating that it is greater.
Therefore, using a number line to compare the two numbers, we can conclude that 2.1 is less than 2.3, which can be written as 2.1 < 2.3.
The probable question may be:
Use the number line to help you compare the numbers 2.3 and 2.1.
A. 2.1 < 2.3
B. 2.3<2.1
C. 2.3=2.1
D. 2.3<2.1