I understand that with words that indicate portions e.g. a lot, a majority, some, all, etc, I need to look at the noun after 'of' to decide if the verb is singular or plural. If the noun after 'of' is singular, I should use a singular verb. If it is plural, I should use a plural verb. For example:
All of the pie is gone. All of the pies are gone.
But what about the following statement:
Each of the children ____ (be) given a balloon on Children's Day.
Should the answer be 'is' or 'are'? Does the same rule apply? Thanks.