### Video Transcript

Multiplying by Five

In this video, we will learn how to
model multiplication by five and recite the five times table.

Here’s a flower with five
petals. If we have one flower, we have one
group of five petals. And we would write this as one
multiplied by five. One times five is five. Two times five is 10. Three times five is 15. And four times five is 20. And five times five equals 25. Five, 10, 15, 20, 25, we call these
numbers multiples of five. What do you notice about these
numbers? Multiples of five end in a five or
zero: five, 10, 15, 20, 25. A multiple of five is the product
when we multiply a number by five. The numbers five, 10, 15, 20, and
25 are all multiples of five.

When we’re skip counting by five,
the numbers we say are all multiples of five: five, 10, 15, 20, 25, 30, 35, 40, 45,
50.

Now that we’ve learned what a
multiple of five is, let’s practice reciting the five times table. One times five is five. Two times five is 10. Three times five is 15. Four times five is 20. Five times five is 25. Six times five is 30. Seven times five is 35. Eight times five is 40. Nine times five is 45. And 10 times five is 50. Let’s practice what we’ve learned
about multiplying by five with some questions.

The sequence chart will help
you to multiply by five using the method of skip counting by five up to 10
times. Use skip counting to find five
times two. Use skip counting to find five
times nine.

In this question, we’re asked
to find five times two and five times nine. And we’re told to use the chart
to help us. We’re also told to use the
chart to help us skip count by five: five, 10, 15, 20, 25, 30, 35, 40, 45,
50. To help us find five times two,
we need to skip count by five twice: five, 10. Five times two or two times
five equals 10.

To find five times nine, we’ll
need to skip count in fives nine times: five, 10, 15, 20, 25, 30, 35, 40,
45. Five times nine is 45.

To help us multiply by five, we
used the chart to skip count by fives. Five times two is 10. And five times nine is 45.

Consider the following
diagram. One times five equals five. Two times five equals 10. Three times five equals 15. We notice that when we multiply
by five, each row is five more than the previous one. Find the result of the
following. Four times five equals
what. Find the result of the
following. Five times five equals
what.

In this question, we’re being
asked to find four times five and five times five. And we’re told to use the
diagram or the model to help. When we multiply by five, each
row is five more than the previous one. One times five is five, and two
times five is 10. We know that 10 is five more
than five. 15 is five more than 10.

So to find four times five, we
need to find the number which is five more than 15: five, 10, 15, 20. Four times five equals 20. And we know that five times
five is five more than 20. Five times five is 25. One times five is five. Two times five is 10. Three times five is 15. Four times five is 20. And five times five is 25. To find the missing products,
we counted in fives.

Find the missing product. Eight times five equals
what.

In this question, we’re asked
to find the product of eight times five. The product is the number we
get when we multiply eight by five or five by eight. To find eight times five, we
could skip count in fives eight times: five, 10, 15, 20, 25, 30, 35, 40. We counted in fives eight
times. The product of eight times five
is 40.

What have we learned in this
video? We’ve learned how to use models to
help us multiply by five. We’ve also learned how to recite
the five times table.