Video Transcript
Word Problems: Adding Objects
In this video, we will learn how to
solve problems with numbers up to 10 to find the total when one or more objects are
added to a group.
Here’s a group of dinosaurs, and
here are some more dinosaurs. How many dinosaurs are there
altogether? First, let’s count how many
dinosaurs there are in the group. One, two, three. And how many more dinosaurs are
there? One, two.
Now, let’s find out how many
dinosaurs there are altogether. Let’s add the two dinosaurs to the
three dinosaurs in the group. There’s one, two more. Now, we can count how many
dinosaurs we have altogether. One, two, three, four, five. Three and two is five. We had three dinosaurs to begin
with. We added two more to the group,
which makes five dinosaurs altogether. To write this as an addition
sentence, we would write three plus two equals five. Three and two more makes five
altogether.
We can use models to help us solve
addition problems. To help us find out how many
cookies there are altogether, we could use some counters to help. Let’s count the star-shaped
cookies. One, two, three. Now, let’s count the gingerbread
cookies. And we can use a counter to
represent each cookie. One, two, three, four. If we place all of the counters
into the ten frame, we can see how many counters there are altogether. One, two, three, four, five, six,
seven. Three and four is seven. Three plus four equals seven. If we have three cookies and add
four more, we will have seven cookies altogether.
Let’s practice adding more to a
group.
There were two chicks in a
nest. Then, two more hatched. How many chicks are in the
nest? Fill in the box. Two chicks and two more makes
what? Write the numbers in the
addition sentence. What plus what equals what?
We know there are two chicks in
the nest and then two more hatched. We have to work out how many
chicks there are altogether and write the number in the box. We could use counters and a ten
frame to help us find the number of chicks Altogether. There were two chicks in the
nest to begin with. Then, two more hatched. How many counters are there in
our ten frame altogether? There are four. Two chicks and two more makes
four.
Now, we need to write the
numbers in the addition sentence. We know that there were two
chicks in the nest to begin with. And then, two more hatched. And there are four chicks
altogether. The addition sentence which
shows this problem is two plus two equals four.
There are seven apples and two
more apples. How many apples are there
altogether? Tip: use blocks or counters to
make a model.
Let’s use blocks to help us
solve this problem. We know there are seven apples
to begin with and then we add two more. Let’s start by using seven
cubes to show the seven apples we have to start with. One, two, three, four, five,
six, seven. We have seven apples to begin
with, but we need to add two more. One more than seven is
eight. And two more than seven is
nine. Seven apples and two more
apples is nine. There are nine apples
altogether. Seven plus two equals nine.
What have we learned in this
video? We’ve learned how to model addition
problems to help us find the total when we add more objects to a group. We’ve also learned how to write
addition sentences using the plus and the equal symbol. Three plus two equals five.
