Video Transcript
There are five apples, and none
of them has been eaten. How many apples are left? Write the equation that
explains this situation.
We begin this problem with five
apples. In fact, we can see a picture
of our five apples underneath. The next piece of information
we’re told is that none of the apples has been eaten. And this word “none” is really
important. It represents a number. And that number is zero. Zero apples have been
eaten. Our first question asks us, how
many apples are left? If we’ve eaten none of them, we
know that all of them are going to be left. And we can see in the picture
this isn’t a picture before; this is a picture afterwards. Yes, we started with five
apples. But because none of them have
been eaten, we’ve ended with five apples too. And so we can say the number of
apples that are left is five.
In the next part of the
problem, we’re asked to write the equation or the number sentence that explains
the situation. What number shall we start with
in our number sentence? Well, we know that there were
five apples to begin with. So we’ll start with the number
five. Because this is to do with
eating apples, it’s going to be a take-away number sentence or a
subtraction. Now, what number are we going
to subtract? How many apples were eaten? None of the apples were
eaten. So we can put a zero there. This is all about subtracting
zero from a number.
And what happens when we
subtract zero from a number? Well, as we’ve said already,
when we take away zero, we’re left with all. The number that we started with
doesn’t change. And we can see that we’re left
with five apples still. The equation that explains the
situation is five take away zero equals five.
