Video Transcript
Which picture shows four groups of
three? Which expression means four groups
of three?
We’re shown two different
pictures. We have to pick the one which shows
four groups of three. Let’s look at the first
picture. How many groups does it show? One, two, three. Three groups of what? How many are in each group? Let’s count. One, two, three, four. The first picture shows three
groups of four. The second picture shows one, two,
three, four groups of one, two, three.
So, the second picture shows a four
groups of three. This is the correct picture. It shows four groups of three.
In the second part of the question,
we’re given four different expressions. We have to pick the one which means
four groups of three. We know there are four groups of
three. Is there a symbol we could use to
say groups of? We could use the multiplication
sign. Four groups of three is the same as
four multiplied by three. We could also use repeated
addition. To show four groups of three, we
would need four threes. And we would need to add these four
threes together. So, which of the four expressions
means four groups of three? Is it four times three, four plus
four plus four, four plus three, or four plus three plus three plus three?
The first expression is four times
three. Four times three means four groups
of three. Four plus four plus four is three
groups of four or three lots of four. Four plus three is seven. So, that can’t be the correct
expression. And four plus three plus three plus
three is one four and three threes. So, that’s not the correct
expression, either.
The expression which means four
groups of three is four multiplied by three.
