10 questions · type your answer and click Check · try to match the answer style shown in examples
1Find the average of 6, 9, 12, 15.
2Find the average of 2, 4, 6, 8, 10.
3The average of 4 numbers is 25; three are 20, 22, 28. Find the fourth.
4A student's average over 5 tests is 78. If 4 test scores are 70,75,80,85, find the fifth.
5Find the average of -3, 5, and 4.
6Find the average weight if weights are 50kg, 55kg, 60kg, 65kg.
7If the average of 6 numbers is 12, find their total sum.
8A shop's daily sales for 5 days are $100, $150, $120, $130, $200. Find the average.
9The average of two numbers is 25 and one number is 30. Find the other.
10Find the average of the first five natural numbers (1,2,3,4,5).