PIMSO 2023 - Mathematics - Grade 4 - National Round

What is the largest three digit number that is divisible by 13?

Max has twenty five gummy bears. He has three friends, Jack, Jill, and Jane. What is the remainder/excess if he were to split the gummy bears evenly among himself and his friends?

Evaluate: 1 + 2 + 3 + … + 58 + 59 + 60

What is the remainder when 1000 is divided by 7?

What is the smallest prime number larger than 100?

What is the smallest value of x so that 123x56y is divisible by 15? Here, y is also a single digit number, not necessarily equal to x.

How many triangles are there?

How much time will two men take to complete a task if six men can complete the same task in 12 hours?

Two shapes are each given a value.

Here are five times you would find on a standard clock. If the times were formed by an hour hand and a minute hand, which two of these times would form an obtuse angle? 1:05 2:00 3:10 6:20 8:00 11:30 (Note: There are 2 answers)

Below are seven 1-inch cubes that are glued together. How many total faces are glued together?

What’s next in the series? 1, 3, 6, 11, 18, 29, ___

Simplify: 15 - (6 - 3) + 2

What is the product of 2/3 and 5/6?

What is the greatest 4-digit number that is divisible by 5?

Among the following, which one is the least: 3/4, 0.8, 7/10, 0.9?

If it takes 4 hours to paint a wall using 3 cans of paint, how many cans of paint are needed to paint 9 walls?

Solve the following expression: (5 + 3) * 2 - 7.

How many 1x1, 2x2, 3x3, 4x4, 5x5, and 6x6 squares in total are there in a 6x6 square grid? (Answer: 91)

A rectangular photo has a rectangular frame that is 2 cm thick. If the photo has dimensions 12 cm by 8 cm, what is the area of the rectangular frame?