What is the smallest integer where every digit is a 3 or a 4 and it is divisible by both 3 and 4?
Weekly Problem 41 - 2014
Three straight lines divide an equilateral triangle into seven regions. What is the side length of the original triangle?
Here are some examples of children's thinking prompted by drawings of numbered sunflowers on an outside wall.
Think of a number and follow the machine's instructions... I know what your number is! Can you explain how I know?
Can you explain what is going on in these puzzling number tricks?
EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.
Follow instructions to fold sheets of A4 paper into pentagons and assemble them to form a dodecahedron. Calculate the error in the angle of the not perfectly regular pentagons you make.
How does the position of the line affect the equation of the line? What can you say about the equations of parallel lines?
