Question 1 of 35
Three of these are the same size. Which one is different?
🔢 Maths · Class 1 · 2026-27
SOF IMO Class 1 free mock test and sample paper
A full IMO Class 1 practice paper: 35 questions for 40 marks in 60 minutes, in the same 4 sections and order as the SOF paper. Take it here with an instant score — no login, no sign-up — or print it with an OMR sheet and the answer key. Free, with no ads.
- Questions35
- Marks40
- Time60 min
- Sections4
The paper
Tap an answer for each question. The 60-minute clock starts at your first answer; press Finish and mark at the bottom when you are done, and every answer is explained.
Section 1 — Logical Reasoning · 10 × 1 mark
- Question 2 of 35
Three of these numbers are alike. Which one is the odd one out?
- Question 3 of 35
Three of these are shaded the same way. Which one is different?
- Question 4 of 35
Which one comes next in the pattern?
- Question 5 of 35
Which shape is just above the rectangle?
- Question 6 of 35
Ishaan is taller than Ira. Ira is taller than Aarav. Aarav is taller than Vihaan. Who is the shortest?
- Question 7 of 35
Which figure completes the grid?
? - Question 8 of 35
Three of these belong together. Which one is the odd one out?
- Question 9 of 35
Which shape comes next?
- Question 10 of 35
Which shape belongs to the same group as these two?
Section 2 — Mathematical Reasoning · 10 × 1 mark
- Question 11 of 35
8 + 3 = ?
- Question 12 of 35
Count forward in 10s. Which number comes next?
30, 40, 50, 60, ___
- Question 13 of 35
How many sides does this shape have?
- Question 14 of 35
Which one comes next in the pattern?
- Question 15 of 35
How much money is there in all?
- Question 16 of 35
Which one shows the expanded form of the number of balls?
- Question 17 of 35
The shape keeps turning the same way. Which one comes next?
- Question 18 of 35
Which number is shown on the abacus?
- Question 19 of 35
Which stick is the shortest?
- Question 20 of 35
Which one gives the greatest answer?
Section 3 — Everyday Mathematics · 10 × 1 mark
- Question 21 of 35
When do we play in the park after school?
- Question 22 of 35
Diya has 10 candies. Diya wants 20 candies in all. How many more are needed?
- Question 23 of 35
Which purse holds the same amount as ₹ 50?
- Question 24 of 35
An orange is shaped like a ___.
- Question 25 of 35
Which one costs the most?
eraser — ₹ 3
notebook — ₹ 15
balloon — ₹ 6
toffee — ₹ 2
- Question 26 of 35
Which of these will roll down a slope?
- Question 27 of 35
Aarav has a ribbon 15 cm long and cuts off 5 cm of it. How long is the ribbon now?
- Question 28 of 35
Kabir buys a balloon for ₹ 6 and a notebook for ₹ 15. How much money is paid in all?
- Question 29 of 35
In which unit do we measure how heavy one grape is?
- Question 30 of 35
Kabir has 15 birds and Anaya has 3. How many more birds does Kabir have than Anaya?
Section 4 — Achievers Section · 5 × 2 marks
- Question 31 of 35
Ishaan's pencil is 18 cm long and Ira's pencil is 12 cm long. How much longer is Ishaan's pencil?
- Question 32 of 35
How many rectangles are there in this figure? Count the big ones too.
- Question 33 of 35
Saanvi pays with a ₹ 50 note for a toffee costing ₹ 2 and a balloon costing ₹ 6. How much change comes back?
- Question 34 of 35
I am a 2-digit number. My tens digit is 9. My ones digit is 2 less than my tens digit. Which number am I?
- Question 35 of 35
Aarav had 32 balls. Aarav gave 9 of them away and then got 8 more. How many balls are there now?
Answer key and explanations (opens below)
1. (B) 2. (B) 3. (D) 4. (B) 5. (D) 6. (D) 7. (C) 8. (A) 9. (B) 10. (D) 11. (C) 12. (B) 13. (B) 14. (B) 15. (B) 16. (B) 17. (A) 18. (A) 19. (C) 20. (C) 21. (A) 22. (D) 23. (D) 24. (D) 25. (A) 26. (D) 27. (C) 28. (D) 29. (B) 30. (A) 31. (C) 32. (D) 33. (D) 34. (C) 35. (A)
- 1. (B)
Do not look at the shapes — look at how big they are. Three are the same size and one is bigger than the rest.
- 2. (B)
62, 67, 68 all have 6 in the tens place. 36 has 3 there, so it is the odd one out.
- 3. (D)
Do not look at the shapes — look only at the shading. Three of them match each other and one does not.
- 4. (B)
The pattern goes big, small, big, small. After a big one comes a small one.
- 5. (D)
Put your finger on the rectangle and move it straight up one box. You land on the rhombus.
- 6. (D)
Line them up from tallest to shortest: Ishaan, Ira, Aarav, Vihaan. So the shortest is Vihaan.
- 7. (C)
Along each row the shading stays the same, and down each column the shape stays the same. The empty box needs a star shaded like the one beside it.
- 8. (A)
A semicircle, an oval and a circle are all drawn with a curved line. The pentagon does not, so it is the odd one out.
- 9. (B)
The pattern is semicircle, rectangle over and over. After rectangle comes semicircle.
- 10. (D)
An oval and a semicircle are both drawn with a curved line. A circle does too, so it belongs with them.
- 11. (C)
Count all of them together: 8 and 3 more make 11.
- 12. (B)
Every jump adds 10. 60 + 10 = 70.
- 13. (B)
Run your finger round the edge and count each straight line. A rhombus has 4 sides.
- 14. (B)
The pattern goes big, small, big, small. After a big one comes a small one.
- 15. (B)
2 notes of ₹ 10 are ₹ 20, and 4 coins of ₹ 2 are ₹ 8. Together that is ₹ 28.
- 16. (B)
There are 18 balls — 1 ten and 8 ones. So 18 = 10 + 8.
- 17. (A)
Every step turns the shape a half turn the same way, so the next one is turned a half turn further than the last.
- 18. (A)
The T rod has 7 beads and the O rod has 4. That is 7 tens and 4 ones, which is 74.
- 19. (C)
Line them up in your head from one end. The shortest stick is the one that reaches least far.
- 20. (C)
Work each one out. 5 + 7 = 12, 3 + 14 = 17, 9 + 10 = 19, 9 + 11 = 20. The greatest answer is 20.
- 21. (A)
We play in the park after school in the evening.
- 22. (D)
Count on from 10 up to 20: that is 10 more candies.
- 23. (D)
4 notes of ₹ 10 are ₹ 40, and 2 coins of ₹ 5 are ₹ 10. Together that is ₹ 50.
- 24. (D)
An orange has the shape of a sphere.
- 25. (A)
Compare the prices: ₹ 3, ₹ 15, ₹ 6, ₹ 2. The biggest is ₹ 15, the notebook.
- 26. (D)
A ball is round, so it rolls. The others have flat faces and only slide.
- 27. (C)
15 cm − 5 cm = 10 cm of ribbon is left.
- 28. (D)
₹ 6 + ₹ 15 = ₹ 21.
- 29. (B)
We measure how heavy one grape is in grams.
- 30. (A)
Match them up one to one. 15 − 3 = 12, so Kabir has 12 more.
- 31. (C)
Take the shorter length away from the longer one: 18 − 12 = 6 cm.
- 32. (D)
The lines cut the big rectangle into 4 small ones. Joining neighbours makes more: 10 rectangles in all.
- 33. (D)
The two things cost ₹ 2 + ₹ 6 = ₹ 8. ₹ 50 − ₹ 8 = ₹ 42 comes back.
- 34. (C)
The tens digit is 9, so the ones digit is 9 − 2 = 7. 9 tens and 7 ones make 97.
- 35. (A)
First 32 − 9 = 23. Then 23 + 8 = 31.
About this mock test
- Is this IMO Class 1 mock test really free, with no login?
- Yes. The whole paper is on this page: no account, no sign-up, no phone number and no ads. Nothing your child answers here is sent anywhere or stored.
- How is it marked?
- The same way as the SOF paper: Logical Reasoning 1 mark a question, Mathematical Reasoning 1 mark a question, Everyday Mathematics 1 mark a question, Achievers Section 2 marks a question, 40 marks in all. Press Finish and mark to see the score by section and the right answer, with an explanation, under every question.
- Can I print it?
- Yes. Print paper + OMR sheet lays it out like the real paper, with a bubble sheet and the answer key on its own last page so it can be set aside. Choose Save as PDF in the print dialog to keep a copy.
- Is it the same as the real IMO paper?
- It has the real paper's shape — 35 questions, the same sections in the same order, the same marks and the same 60 minutes — and its questions come from the IMO Class 1 syllabus. The questions are Sprinto's own, not SOF's; Sprinto is not affiliated with the Science Olympiad Foundation.
Fresh questions every time
This paper stays the same so it can be printed and shared. In the app every IMO Class 1 question is new, the next one is picked to be just hard enough, and mistakes come back until they stick. Still free.