20 Maths Olympiad Questions for Class 1 with Answers

Is your child preparing for a Class 1 Mathematics Olympiad?

Regular practice with age-appropriate questions can help children develop number sense, logical thinking, problem-solving skills and confidence.

This free practice test contains 20 Class 1 Maths Olympiad questions covering numbers, addition, subtraction, patterns, shapes, measurement, time, money and reasoning.

Try to solve all the questions before checking the answers.

Let's begin!

Class 1 Maths Olympiad Practice Questions

Question 1 – Numbers

Which number comes after 29?

A. 28
B. 30
C. 31
D. 39

Answer: B. 30

Explanation:
After 29 comes 30.

Question 2 – Number Comparison

Which is the greatest number?

A. 17
B. 25
C. 19
D. 21

Answer: B. 25

Explanation:
Among 17, 25, 19 and 21, the greatest number is 25.

Question 3 – Addition

What is:

14 + 5 = ?

A. 18
B. 19
C. 20
D. 21

Answer: B. 19

Explanation:

14 + 5 = 19

Question 4 – Subtraction

What is:

18 − 7 = ?

A. 9
B. 10
C. 11
D. 12

Answer: C. 11

Explanation:

18 − 7 = 11

Question 5 – Number Pattern

Find the missing number:

2, 4, 6, 8, ___

A. 9
B. 10
C. 11
D. 12

Answer: B. 10

Explanation:
The numbers increase by 2.

2 → 4 → 6 → 8 → 10

Question 6 – Shapes

Which shape has 3 sides?

A. Circle
B. Square
C. Triangle
D. Rectangle

Answer: C. Triangle

Explanation:
A triangle has 3 sides.

Question 7 – Shapes

Which shape has no corners?

A. Square
B. Triangle
C. Rectangle
D. Circle

Answer: D. Circle

Explanation:
A circle has a curved boundary and no corners.

Question 8 – Addition Challenge

Riya has 8 pencils.

Her mother gives her 6 more pencils.

How many pencils does Riya have now?

A. 12
B. 13
C. 14
D. 15

Answer: C. 14

Explanation:

8 + 6 = 14

Question 9 – Subtraction Challenge

There are 15 apples in a basket.

5 apples are taken out.

How many apples remain?

A. 8
B. 9
C. 10
D. 11

Answer: C. 10

Explanation:

15 − 5 = 10

Question 10 – Odd One Out

Which number is different from the others?

A. 2
B. 4
C. 6
D. 9

Answer: D. 9

Explanation:
2, 4 and 6 are even numbers.

9 is an odd number.

Challenge Round

Now let's try some questions that require a little more thinking.

Question 11 – Missing Number

5 + ___ = 12

What number is missing?

A. 5
B. 6
C. 7
D. 8

Answer: C. 7

Explanation:

5 + 7 = 12

Therefore, the missing number is 7.

Question 12 – Before and After

Which number comes immediately before 50?

A. 48
B. 49
C. 51
D. 52

Answer: B. 49

Question 13 – Measurement

Which object is likely to be the heaviest?

A. Pencil
B. Eraser
C. School bag full of books
D. Sheet of paper

Answer: C. School bag full of books

Explanation:
A school bag containing several books is likely to be much heavier than the other objects.

Question 14 – Money

You have ₹20.

You spend ₹7.

How much money is left?

A. ₹11
B. ₹12
C. ₹13
D. ₹14

Answer: C. ₹13

Explanation:

₹20 − ₹7 = ₹13

Question 15 – Time

If the hour hand points at 3 and the minute hand points at 12, what time is it?

A. 2:00
B. 3:00
C. 4:00
D. 12:03

Answer: B. 3:00

Question 16 – Pattern

Complete the pattern:

🔴 🔵 🔴 🔵 ___

A. 🔴
B. 🔵
C. 🟢
D. 🟡

Answer: A. 🔴

Explanation:
The pattern repeats:

Red → Blue → Red → Blue → Red

Question 17 – Logical Thinking

A box has 4 red balls and 3 blue balls.

How many balls are there altogether?

A. 6
B. 7
C. 8
D. 9

Answer: B. 7

Explanation:

4 + 3 = 7

Question 18 – Comparison

Which statement is correct?

A. 15 is smaller than 10
B. 8 is greater than 12
C. 20 is greater than 15
D. 5 is greater than 9

Answer: C. 20 is greater than 15

Question 19 – Number Puzzle

I am a number greater than 10 but smaller than 12.

What number am I?

A. 9
B. 10
C. 11
D. 12

Answer: C. 11

Question 20 – Olympiad Challenge

There are 10 birds sitting on a tree.

3 birds fly away.

Then 2 more birds come.

How many birds are on the tree now?

A. 7
B. 8
C. 9
D. 10

Answer: C. 9

Explanation:

Initially = 10 birds

3 fly away:

10 − 3 = 7

2 come:

7 + 2 = 9

Therefore, 9 birds are on the tree.

Answer Key

Check Your Score

🏆 18–20 Correct

Excellent!

Your number skills and logical thinking are developing very well.

⭐ 15–17 Correct

Very good!

Review the questions you got wrong and try the test again later.

👍 10–14 Correct

Good start!

Practise numbers, addition, subtraction and patterns regularly.

💪 Below 10

Don't worry.

Go back to the basic concepts and practise a few questions every day.

Remember:

Practice makes progress.

What Should a Class 1 Student Practise for Maths Olympiad?

Depending on the particular Olympiad, Class 1 Mathematics preparation can include areas such as:

• Numbers and number names

• Addition

• Subtraction

• Number comparison

• Patterns

• Shapes

• Spatial understanding

• Measurement

• Time

• Money

• Logical reasoning

• Everyday Mathematics

• Application-based questions

For example, SOF's current Class 1 IMO syllabus includes logical reasoning, numerals, number names, number sense, addition, subtraction, lengths, weights, comparisons, time, money, geometrical shapes and solids, along with higher-order questions.

Other Olympiad organisers may use different syllabi or patterns, so parents should check the official syllabus for the specific examination.

How to Improve Maths Olympiad Performance

A simple routine can help:

Step 1

Learn the concept.

Step 2

Solve basic questions.

Step 3

Try application questions.

Step 4

Solve reasoning questions.

Step 5

Take a short test.

Step 6

Check mistakes.

Step 7

Practise again.

The goal is not simply to solve more questions.

The goal is to understand why the answer is correct.

Parents: Make Maths Fun!

For Class 1 students, Mathematics practice does not always have to happen in a book.

Try asking questions during everyday activities:

“How many apples are there?”

“Which glass has more water?”

“What shape is this clock?”

“What number comes after 39?”

“If we have ₹20 and spend ₹5, how much remains?”

These small activities can turn everyday situations into learning opportunities.

More Olympiad Practice From Olympiad Digital

If your child enjoyed this Class 1 Maths practice test, explore our other Olympiad resources.

👉 How to Start Olympiad Preparation from Class 1

👉 Olympiad Exam Syllabus for Classes 1–12

👉 How to Prepare for Olympiad Exams at Home

👉 20 Olympiad Questions for Class 6

👉 How to Improve Olympiad Score and Rank

We are continuously building useful Olympiad learning resources for students from Classes 1–12.

Final Thoughts

Olympiad preparation should begin with curiosity, not pressure.

For Class 1 students, focus on:

Numbers

Patterns

Shapes

Problem-solving

Logical thinking

Regular practice

Most importantly, encourage your child to enjoy solving problems.

A difficult question today can become an easy question tomorrow with practice.

📚 Learn. Practise. Think. Improve.

Olympiad Digital