TIMO 2026 Grade 3 Preliminary SET 1 - Self-study

3 years ago, the sum of ages of Alex and his mother was 38. Alex is 8 years old now. How old is his mother now?

In a line of students, Mary is 9th from the front and 14th from the back. How many students are there in the line?

Find the next number in the pattern:

$2, 5, 11, 23, 47, \ldots$

Today is Thursday. What day of the week will it be 25 days from today?

A farmer has chickens and rabbits. There are 20 heads and 56 legs in total. How many rabbits are there?

Calculate: $148+273+352+127$

Find the value of: $3+7+11+15+\cdots+39$

A number is multiplied by 4, then 18 is subtracted, and finally divided by 3 to get 14. What is the original number?

In the addition sum $\overline{A3B}+\overline{2C4}=659$, find the value of $A+B+C$.

When a number is divided by 7, the quotient is 13 and the remainder is 5. What is the number?

The sum of 5 consecutive odd numbers is 75. What is the largest of these 5 numbers?

Find the single digit X such that the 4-digit number $\overline{4X32}$ is divisible by 9.

If $a\otimes b=a\times b-a+b$, find the value of $6\otimes4$.

Find the units digit of $1\times3\times5\times7\times9\times11\times13$.

How many 2-digit numbers are divisible by both 3 and 4?

How many triangles are there in a figure with a large triangle divided by 3 line segments from the top vertex to the base?

A rectangle of length 12 cm and width 8 cm has a small square of side 3 cm cut off from one corner. What is the perimeter of the remaining figure?

A square has a perimeter of 32 cm. What is its area in cm²?

A large cube is built using 27 small unit cubes and painted blue on the outside. How many unit cubes have exactly 2 painted faces?

A rectangle is formed by placing 3 identical squares of side 5 cm side by side. What is the perimeter of this rectangle?