210  Average
1

Name : _________________

 

refresh

Class A - 7 students with the score 60%.
Class B - 3 students with the score 60%.
What is the total average score?



Class A - 13 students with the score 40%.
Class B - 7 students with the score 70%.
What is the total average score?



Class A - 16 students with the score 40%.
Class B - 4 students with the score 60%.
What is the total average score?



Class A - 4 students with the score 90%.
Class B - 6 students with the score 90%.
What is the total average score?



Class A - 15 students with the score 40%.
Class B - 5 students with the score 80%.
What is the total average score?



Class A - 14 students with the score 90%.
Class B - 6 students with the score 40%.
What is the total average score?



Class A - 7 students with the score 40%.
Class B - 3 students with the score 80%.
What is the total average score?



Class A - 14 students with the score 90%.
Class B - 6 students with the score 90%.
What is the total average score?



Class A - 6 students with the score 90%.
Class B - 4 students with the score 50%.
What is the total average score?



Class A - 12 students with the score 80%.
Class B - 8 students with the score 80%.
What is the total average score?



+(         )

 

(         )+

++[[          ]]++

210    60 50.5 44 90 50 ( 294.5 )   75 52 90 74 80 ( 371 )   [[ 665.5 ]]