Answer :
This is a problem with place values and the ordering of numbers.
We will see that: "2 tens 3 tenths 1 thousandth is less than 20.31"
First we need to write the number:
"2 tens, 3 tenths, 1 thousandth"
Tens refer to the second digit at the left of the decimal point, so 2 tens is:
20
tenths refer to the first digit at the right of the decimal point
thousandths refers to the third digit at the right of the decimal point.
Then: "2 tens, 3 tenths, 1 thousandth" is written as:
20.301
Now we want to see if it is greater or less than 20.31
We can rewrite the second number to get:
20.310, is easy to see that this is larger than 20.301
Thus,
2 tens 3 tenths 1 thousandth is less than 20.31
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