Primary 5 learners often meet average questions when they begin working with data, scores, quantities, and word problems. In this level, the word average usually means the mean, found by adding all values and dividing by the number of values. The following article gives practice questions with direct answers so that a learner, tutor, or parent can use them for revision.
TLDR: Average questions help Primary 5 students understand how to find the mean of a group of numbers. The basic rule is: total ÷ number of items = average. This set includes 30 suitable questions with answers, moving from simple number sets to short word problems. A short FAQ section at the end explains common mistakes and study tips.
What Primary 5 Students Should Know About Averages
An average is useful because it gives one number that represents a whole group of numbers. For example, if a pupil scores 70, 80, and 90 in three tests, the average score is found by adding the scores and dividing by 3. This means 70 + 80 + 90 = 240, and 240 ÷ 3 = 80.
Before attempting average questions, a Primary 5 student should be comfortable with addition, division, and simple word problems. The questions below are arranged to give steady practice.
30 Average Questions for Primary 5 Students with Answers
- Question: Find the average of 4, 6, and 8.
Answer: 6. - Question: Find the average of 10, 20, and 30.
Answer: 20. - Question: Find the average of 5, 7, 9, and 11.
Answer: 8. - Question: Find the average of 12, 14, 16, and 18.
Answer: 15. - Question: Find the average of 25, 35, and 45.
Answer: 35. - Question: Find the average of 6, 8, 10, 12, and 14.
Answer: 10. - Question: Find the average of 15, 20, 25, and 30.
Answer: 22.5. - Question: Find the average of 40, 50, 60, and 70.
Answer: 55. - Question: Find the average of 3, 6, 9, 12, and 15.
Answer: 9. - Question: Find the average of 100, 120, and 140.
Answer: 120. - Question: A pupil scored 60, 70, and 80 in three tests. What was the average score?
Answer: 70. - Question: Four friends have 8, 10, 12, and 14 pencils. What is the average number of pencils?
Answer: 11 pencils. - Question: A shop sold 20, 25, and 30 bags on three days. What was the average number of bags sold per day?
Answer: 25 bags. - Question: A child read 15 pages on Monday, 20 on Tuesday, and 25 on Wednesday. What was the average number of pages read?
Answer: 20 pages. - Question: The heights of three plants are 30 cm, 40 cm, and 50 cm. Find the average height.
Answer: 40 cm. - Question: A team scored 2, 4, 6, and 8 goals in four matches. What was the average number of goals?
Answer: 5 goals. - Question: Five children collected 10, 12, 14, 16, and 18 shells. Find the average.
Answer: 14 shells. - Question: A bus carried 30, 35, 40, and 45 passengers on four trips. What was the average?
Answer: 37.5 passengers. - Question: A farmer picked 50, 60, and 70 mangoes in three days. Find the average number of mangoes picked.
Answer: 60 mangoes. - Question: A class had quiz scores of 18, 20, 22, 24, and 26. What was the average score?
Answer: 22.
- Question: The average of 6, 8, and one other number is 10. What is the missing number?
Answer: 16. - Question: The average of 12, 14, and one missing number is 15. Find the missing number.
Answer: 19. - Question: The average of four numbers is 20. What is their total?
Answer: 80. - Question: The average of five numbers is 9. What is their total?
Answer: 45. - Question: The average age of 3 children is 11 years. What is their total age?
Answer: 33 years. - Question: A pupil needs an average of 75 in four tests. The first three scores are 70, 75, and 80. What score is needed in the fourth test?
Answer: 75. - Question: The average weight of 4 boxes is 10 kg. Three boxes weigh 8 kg, 9 kg, and 11 kg. Find the weight of the fourth box.
Answer: 12 kg. - Question: The average of 20, 30, 40, and a missing number is 35. Find the missing number.
Answer: 50. - Question: A runner ran 100 m, 120 m, and 140 m during training. What was the average distance?
Answer: 120 m. - Question: The average of six numbers is 15. What is the total of the six numbers?
Answer: 90.
How Students Can Solve Average Questions
To solve average problems correctly, a student should follow a clear method. First, all the numbers should be added carefully. Next, the total should be divided by how many numbers there are. If a number is missing, the student should first find the required total, then subtract the known numbers.
- Step 1: Add the given values.
- Step 2: Count how many values are in the question.
- Step 3: Divide the total by the number of values.
- Step 4: For missing numbers, use average × number of values to find the total first.
Regular practice helps a learner notice patterns. Many average questions use numbers that are evenly spaced, such as 10, 20, and 30. In such cases, the middle number is often the average, but the full calculation is still the safest method.
Common Mistakes to Avoid
One common mistake is dividing by the wrong number. For example, if there are five scores, the total must be divided by 5, not by 4 or 6. Another mistake is forgetting to include all values in the addition. A careful student checks the total before dividing.
In missing-number questions, some learners subtract too early. The better method is to first calculate the total that the numbers must make. For example, if the average of 4 numbers is 10, the total must be 4 × 10 = 40. Only after that should the known numbers be subtracted.
FAQ
- What does average mean in Primary 5 maths?
It usually means the mean, which is found by adding all numbers and dividing by how many numbers there are. - What is the formula for average?
The formula is average = total ÷ number of values. - How can a student find a missing number in an average question?
The student should multiply the average by the number of values to find the total, then subtract the known numbers. - Why do some answers have decimals?
Decimals appear when the total cannot be divided equally into a whole number. For example, 90 ÷ 4 = 22.5. - How often should a Primary 5 student practise average questions?
Short practice sessions, about three or four times a week, can help build speed and confidence.