Video Transcript
Ways to Make 10
In this video, we will learn how to
use objects and pictures to find different ways to make 10. This equipment is called an
abacus. Each row contains a total of 10
beads. And we can move the beads to show
all different ways to make 10. One and nine makes 10. Two and eight makes 10. Three plus seven equals 10. Four plus six equals 10. So does five plus five. Six plus four makes 10. Seven plus three makes 10. Eight plus two equals 10. Nine plus one equals 10. And 10 plus zero equals 10.
You may not have an abacus in your
home or in your classroom. But there’s lots of other maths
equipment that we can use to find ways to make 10. We could use a ten frame.
Which addition fact did we model
using the counters? There are nine orange counters and
one blue. The way we found to make 10 is nine
plus one. We could change the order of the
numbers and say one blue counter plus nine orange counters makes 10.
We could also use a cube train to
find ways to make 10. We’ve got 10 cubes altogether. How many are red? Let’s count them. One, two, three, four, five, six,
seven. We have seven red cubes and one,
two, three blue. Seven plus three makes 10. If we swap the colors over or turn
our cube train to face the other way, we can find another way to make 10. Seven plus three makes 10, and
three plus seven makes 10.
So far, we’ve learned that we can
use an abacus, counters and a ten frame, and a cube train to find different ways to
make 10. Let’s put into practice what we’ve
learned using some questions.
How many more owls do we need to
make 10?
This question is all about making
10. We’ve been given a model to help
us. It’s a ten frame, and it has some
owls inside. The model is called a ten frame
because it has 10 squares. So to make 10, we just need to make
sure that all the squares in the ten frame have an owl inside. Let’s count how many owls we have
already. One, two, three, four, five,
six. How many more owls do we need to
make 10? One, two, three, four. We had six owls, and we added four
more. Six, seven, eight, nine, 10. Six and four more owls makes
10. We needed four more owls to make
10.
Look at the blocks. What number is missing? Eight and what makes 10.
This question is all about making
10. We know that eight and something
makes 10. And we’ve been given a model of a
cube train to help. We know that eight of the blocks
are red. How many are blue? One, two. There are eight red blocks and two
blue. Eight and two makes 10. The missing number is number
two. We knew there were eight red
blocks, and we counted two blue blocks. Eight and two makes 10. The missing number is number
two.
There are 10 rabbits in this field,
but some are hiding. How many are hiding?
We know that there are 10 rabbits
in the field. This question is all about making
10. Although there are 10 rabbits, some
of them are hiding. To find out how many are hiding,
let’s count the rabbits that we can see. We could use this counting frame to
help. Each time we count a rabbit, we
could place a counter in our counting frame. There’s one rabbit, two, three,
four, five, six. We can see six of the rabbits. We know that there are 10 rabbits
in the field, but we can only see six. How many more counters do we need
to make 10? One, two, three, four.
If there are 10 rabbits in the
field and we can see six of them, then four of the rabbits are hiding. Six and four makes 10. Now we know that four rabbits are
hiding.
Pick two of these numbers that make
10. Is it eight and two, five and four,
or five and two?
In this question, we have to pick
two numbers which go together to make 10. And we have to choose from the four
numbers that we’ve been given. Eight, five, two, and four. And we’re given three possible
answers. Does eight and two make 10? Could we put these two together to
make 10? Here’s a ten frame that we’ve
drawn. And it has eight squares colored
blue. If we add two more, will we have
10? Let’s see. One, two. Our ten frame is full. We’ve got 10 squares colored
blue. Eight and two make 10. The two numbers that go together to
make 10 are eight and two.
Five and four makes nine. Do you know what five and two
makes? It’s seven. The two numbers that make 10 are
eight and two.
What have we learned in this
video? We have learned how to use models
and pictures to find different ways to make 10.
