Cubes and cuboids

  • The solid
    problem

    The solid

    Age
    11 to 16
    Challenge level
    filled star empty star empty star
    A task which depends on members of the group working collaboratively to reach a single goal.
  • Next size up
    problem

    Next size up

    Age
    7 to 11
    Challenge level
    filled star filled star empty star

    The challenge for you is to make a string of six (or more!) graded cubes.

  • Partly Painted Cube
    problem

    Partly painted cube

    Age
    14 to 16
    Challenge level
    filled star filled star empty star
    Jo made a cube from some smaller cubes, painted some of the faces of the large cube, and then took it apart again. 45 small cubes had no paint on them at all. How many small cubes did Jo use?
  • Crawl Around the Cube
    problem

    Crawl around the cube

    Age
    11 to 14
    Challenge level
    filled star filled star filled star
    Weekly Problem 37 - 2010
    An ant is crawling around the edges of a cube. From the description of his path, can you predict when he will return to his starting point?
  • 28 - upward and onward
    problem

    28 - upward and onward

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Can you find ways of joining cubes together so that 28 faces are visible?
  • Painted Purple
    problem

    Painted purple

    Age
    14 to 16
    Challenge level
    filled star filled star empty star
    Three faces of a $3 \times 3$ cube are painted red, and the other three are painted blue. How many of the 27 smaller cubes have at least one red and at least one blue face?
  • Cubic Vision
    problem

    Cubic vision

    Age
    14 to 16
    Challenge level
    filled star filled star empty star
    How many cubes can you see?
  • Summing squares
    problem

    Summing squares

    Age
    14 to 16
    Challenge level
    filled star filled star empty star
    Discover a way to sum square numbers by building cuboids from small cubes. Can you picture how the sequence will grow?
  • Holes
    problem

    Holes

    Age
    5 to 11
    Challenge level
    filled star empty star empty star

    I've made some cubes and some cubes with holes in. This challenge invites you to explore the difference in the number of small cubes I've used. Can you see any patterns?

  • Net Result
    problem

    Net result

    Age
    11 to 14
    Challenge level
    filled star empty star empty star
    The net shown here is cut out and folded to form a cube. Which face is then opposite the face marked X?