Find the average of 4, 2, 8, 10, 6, 12.

(a)  

Find the average of 10, 30, 20, 40, 60, 50.

(a)  

Find the average of 4, 12, 8, 16, 28, 24, 20.

(a)  

Find the average of 56, 64, 45, 87, 83.

(a)  

Find the average of 79, 91, 98, 84, 87, 83.

(a)  

Find the average of 101, 102, 103, 104.

(a)  

Find the average of 25, 35, 45, 55, 65, 75, 85.

(a)  

Find the average of 3, 6, 9, 12, 15, 18, 21.

(a)  

Find the missing addend: 65, 63, 74, N, 68, 72.

Average = 67

(a)  

Find the missing addend: 96, N, 91, 90, 86, 84.

Average = 89

(a)  

Find the missing addend: 1 536, 1 563, 1 356, N.

Average = 1 527

(a)  

Find the missing addend: 342, 400, N, 387, 390.

Average = 374

(a)  

Find the missing addend: 17, 28, 32, 19, 26, 20, 31, 35, N.

Average = 25

(a)  

Find the average of 6, 7, 8, 9, 10.

(a)