Estimating food numbers

This task is about using a way of estimating that you have discussed with your teacher.

Question 1Change answer

The method we discussed today is called the interval strategyfront-end estimationrounding upaveraging method
For each of these problems:
  • Make a first estimate of what the total score is at least.
  • Make a second estimate of what the total score is no more than.
  • Use the method you discussed today.

Question 1Change answer

Mr Cooke needed to order food for a school picnic.  
 
a)  There were 678 students, and each student needed 4 sandwiches.
 
     I estimate that he will need at least  sandwiches altogether.
     This is because:
 
     I estimate that he will need no more than  sandwiches altogether
     This is because:

Question 1Change answer

b)  There were 23 classes. Each class got 46 bananas.
     I estimate that he will need at least  bananas altogether.
     This is because:
 
     I estimate that he will need no more than  bananas altogether.
     This is because: