Transcript The pairs of numbers that can be added together to make ten are

Today you will need:
Materials:
• A pencil
• Your math journal
• Ten frame practice sheet (optional)
You have shown
you can add two
numbers to make
ten.
With a partner write pairs
of numbers that added
together equal 10.
Do any groups have these
pairs?
8 + 2 = 10
5 + 5 = 10
3 + 7 = 10
What pairs are missing?
8 and 2 = 10
5 and 5 = 10
3 and 7 = 10
The pairs of numbers that can be
added together to make ten are:
0
1
2
3
4
5
and 10 - or - 10 and 0
and 9 - or - 9 and 1
and 8 - or - 8 and 2
and 7 - or - 7 and 3
and 6 - or - 6 and 4
and 5
But we could also use facts that make
ten to help us solve these problems.
=0
= 10
Let’s look at one of the problems.
34 + 6 =
What number would you put in the box
to complete the number sentence.
34 + 6 =
Work with a partner to solve the
problem. Make sure that you can tell
how you solved the problem.
34 + 6 =
How did you solve the
problem?
34 + 6 =
We could also think of this
problem as:
34 + 6 =
30 + 4 + 6 =
We could also think of this
problem as:
34 + 6 =
30 + 4 + 6 =
30 + 10 (because 6 + 4 = 10) =
Work with a partner to find the
numbers that belong in the shapes.
27 + 3 =
54 + 6 =
42 + 8 =
10 + 60 =
71 + 9 =
5 + 35 =
33 + 7 =
4 + 76 =
You may want to use a ten frame
sheet to make the addition sentence.
If you do you will have to fill the ten
frames to show the number.
27 + 3 =
54 + 6 =
42 + 8 =
10 + 60 =
71 + 9 =
5 + 35 =
33 + 7 =
4 + 76 =
We will come back together to share
our findings. Be prepared to tell how
you found your solutions.
27 + 3 =
54 + 6 =
42 + 8 =
10 + 60 =
71 + 9 =
5 + 35 =
33 + 7 =
4 + 76 =
Is it possible that we could
use the make ten rule for
other problems?
Let’s look at these two
problems.
2 + 8 = 10
20 + 80 = 100
How are these problems
similar? How are they
different?
2 + 8 = 10
20 + 80 = 100
Could you use what you
know about making ten to
solve 20 + 80 = 100?
2 + 8 = 10
20 + 80 = 100
2 and 8 make 10. What are the
other pairs of numbers that make
ten when added?
The pairs of numbers that can be
added together to make ten are:
0
1
2
3
4
5
and 10 - or - 10 and 0
and 9 - or - 9 and 1
and 8 - or - 8 and 2
and 7 - or - 7 and 3
and 6 - or - 6 and 4
and 5
If 2 + 8 = 10 is similar to 20 + 80 =
100 in some ways.
0
1
2
3
4
5
and 10 - or - 10 and 0
and 9 - or - 9 and 1
and 8 - or - 8 and 2
and 7 - or - 7 and 3
and 6 - or - 6 and 4
and 5
If 2 + 8 = 10 is similar to 20 + 80 =
100 in some ways. Use the pairs
below to find similar numbers that
can be added to make a hundred.
0
1
2
3
4
5
and 10 - or - 10 and 0
and 9 - or - 9 and 1
and 8 - or - 8 and 2
and 7 - or - 7 and 3
and 6 - or - 6 and 4
and 5
We will come back together
in a few minutes to share
our findings.
0
1
2
3
4
5
and 10 - or - 10 and 0
and 9 - or - 9 and 1
and 8 - or - 8 and 2
and 7 - or - 7 and 3
and 6 - or - 6 and 4
and 5