Count the red cubes. Which set of cubes has the same
number as set A?
In the first picture, we can see a
line of red cubes, and they’re labelled set A. We’re asked to count the red
cubes. How many are there? One, two, three, four, five, six,
seven. There are seven red cubes. Now, we’re given three more sets of
cubes to look at, this time they’re yellow cubes. And we’re asked, which set of cubes
has the same number as set A? Well, if we look at our cubes, they
For a start, they’re not red;
they’re yellow. And they’re not in a line. They’re all jumbled up. None of them look the same as set
A. But we know different arrangements
of objects can still show the same number. Let’s count our sets of yellow
cubes until we find one that has seven cubes just like the red. Let’s count the first set to begin
with. One, two, three, four, five, six,
seven, eight. We’re looking for a set of seven
cubes. So, this answer is not right.
Let’s count our second set. One, two, three, four, five, six,
seven. This set of cubes has the same
number as set A. Let’s count the final set just to
check. One, two, three, four, five, six,
seven — oh this is going to be more than seven — eight, nine. We counted seven red cubes. And we know that it doesn’t matter
how cubes are arranged or even what color they are. We can still show the same number
in a different way. And so, the set of yellow cubes
that has the same number as set A is the one that contains seven cubes.