TIMO 2019 Grade 4 Heat Set 3

What is the value of the number to represent “?” in the following sequence? 2, 3, 5, 9, 17, 33, ?, 129, …

According to the pattern shown below, how many triangle(s) is / are there from the 1st to the 500th figure counting from the left? ○ △ □ △ ○ △ □ △ ○…

It requires 12 minutes to cut a piece of wood into 5 sections. If the time required to cut into each section is the same, how many minutes are required to cut into 23 sections?

Today is Sunday. Which day of the week will 1002 days be later?

Andy’s grandfather’s age this year adds 7, is divided by 5, minuses 2 and multiplied by 7. The result will be 91 years old. How old is Andy’s grandfather this year?

Find the value of 48÷$1+48$÷$2+48$÷3.

Find the value of $3-6+9-12+15-18+21-24+27-30+33-36+39$.

Find the value of $11+14+17+20+23+26+29+32+35+38$.

Find the value of 123×$23+246$×$20+37$×123.

Find the value of 11×111×1111.

What is the smallest 4-digit number that can be divisible by 4 and 6?

Find the unit digit of A if $A=5$×5×...×5×3×3×...×3 (2018 factors 5 and 2018 factors 3).

Define the operation symbol a⊕b=(a+b)×(a−b), find the value of (145⊕135).

The product of positive numbers A and B is 363. A is 3 times of B. Find the value of A.

If a 9-digit number 20181013A is divisible by 18, find the value of A.

How many rectangle(s) with “*” is / are there in the figure below?

It is known as the lengths of shorter sides for a right-angled triangle are 5cm and 12cm respectively. Find the length of the longest side.

The area of a rectangle is 80 cm2. If the sides of the rectangle are integers, how many different value(s) of the perimeter of this rectangle is / are there?

A big square is formed by 25 squares with side length 7 cm. How many cm is the perimeter of the big square?

How many right-angled triangle(s) is / are there in the figure below?