Video Transcript
Repeated Addition
In this video, we will learn how to
represent equal groups with a repeated addition sentence and a multiplication
sentence.
There are five monsters. Each monster has six eyes. There are five groups of six
eyes. Think about how we can find the
total number of eyes. This model shows five groups of
six eyes. Noah says, “I can add.” Hannah says, “I can
multiply.” Help Noah write an addition
expression for the total number of eyes.
Noah should write six plus six
plus six plus six plus six. There are one, two, three,
four, five groups of six. There are five sixes shown in
our model.
Help Hannah by writing a
multiplication expression for the total number of eyes.
There are five groups of
six. So, Hannah could write five
multiplied by six.
How many eyes are there?
We could use our knowledge of
the six times table, or count in sixes. Six plus six plus six plus six
plus six equals 30. Five multiplied by six equals
30. There are 30 eyes
altogether. We could find our answer using
a repeated addition sentence or a multiplication sentence.
Let’s practice with one more
example.
There are six bunches of
carrots. There are five carrots in each
bunch. How many carrots are there
altogether? Five plus five plus five plus
five plus five plus five equals what?
We know there are six bunches
of carrots and five carrots in each bunch. Five plus five plus five plus
five plus five plus five is the same as saying five times six. We can count in fives six times
to find the answer, five, 10, 15, 20, 25, 30.
Five times six or five plus
five plus five plus five plus five plus five equals 30. There are 30 carrots
altogether.
In this video, we’ve learned how to
represent equal groups with a repeated addition sentence or a multiplication
sentence.
