Answer: 648 crayons
Explanation:
Given : Each student in ms sikes's kindergarten class has a box of crayons. Each box has 36 crayons.
If there are 18 students in Ms sikes class, then by using Multiplication operation the total number of crayons there are =

i.e. the total number of crayons there are =648
Hence, there are 648 crayons in all.