The museum gives tours to students in groups of 7.Four fifth grade classes are going to the museum.There are 20 students in each class,but 3 students were absent today.The museum needs to determine the number of your groups.Select true or False for each statement.
The expression (5×20-3)÷7 can be used to find the number of groups.True or False
The expression (4×20-3)÷7 can be used to find the number of groups. True or False
There will be 11 tour groups. True or False
There will be 77 tour groups. True or False