Kim sold 1400 ice-creams in summer, 800 ice-cream in autumn. What was the average number of ice-creams?
(1400 + 800) : 2 = 1100 (ice-creams)
Minh has 47 apples. An has 53 apples. What is their average number of apples?
(47 + 53) : 2 = 50 (apples)
The pig weighs 120 kg. The buffalo weighs 148 kg. The chicken weighs 2 kg. Find the average mass.
90 kg
Mary buys 8 kg of pears. Lisa buys 4 kg of pears. Find the average mass of the pears.
6 kg
Tom has 47 marbles. Minh has 41 marbles. Find the average number of marbles.
44 marbles
Class 4A has 32 students. Class 4B has 25 students. Class 4C has 24 students. Find the average number of the students.
(32 + 25 + 24) : 3 = 27 (students)