Help I don’t understand

Answer:
5.64 cm
Step-by-step explanation:
Since it asks how much more, this is a subtraction problem.
Dubaku's town had 8 cm and Elliot's had 2.36 cm. Subtract the two amount.
Make sure you line up decimal places. To do this, write 8 and 8.00 since there are two decimal places in 2.36.
8.00
-2.36
The decimal places and place values are lined up so now subtract.
Answer:
5.64
Step-by-step explanation:
bc when I searched it up it gave me khan academy and the same question with this answer.
BTW person above me is right too