Round to the nearest one.

18.18

A.
19
B.
20
C.
18.2
D.
18

1 answer

To round 18.18 to the nearest whole number, you look at the digit in the tenths place (which is 1 in this case). Since 1 is less than 5, you round down.

Therefore, 18.18 rounds to 18.

The correct answer is D. 18.