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Math · Kindergarten Math

Chapter 5: Making Ten

Sums That Make Ten

Writing the ten pairs down.

Lesson
3
Time
About 9 minutes
0 of 6 done

Step 1: Let's Learn

Read it, or press Listen and follow the words.

We can write each ten pair as a sum: 6 + 4 = 10.

Why write it down

Written down, the pair can be read, checked and remembered later. A picture in a frame disappears when you tidy up.

Each pair works both ways

If 6 + 4 = 10 then 4 + 6 = 10 too. Ten sums, but only five things to learn.

They make a staircase

0 and 10, 1 and 9, 2 and 8. One side grows by one while the other shrinks by one, all the way along.

You can tell when you have them all

Start at 0 and go up to 10. Once the staircase is finished, there are no pairs left to find.

Step 2: Try It Yourself

Collect every split. Watch the staircase build.

Move apples between trays. Find all the ways to make ten.
This tray
Tap one to move it across
That tray
Tap one to move it back

6 and 4 make 10.

Ways to make 10

0 of 11 found

  • ?
  • ?
  • ?
  • ?
  • ?
  • ?
  • ?
  • ?
  • ?
  • ?
  • ?
Apples in all10

Step 3: Watch an Example

One step at a time.

Watch Mia Build the Staircase

Mia moves ten apples one at a time.

  1. Step 1

    She starts with all ten in one tray: 10 + 0.

Step 4: Your Turn

Practice makes it stick.

Ten Fingers

Problem 1 of 1

Ten fingers. Four are up. How many are down?

Complete the Ten

1 of 4

7 + ? = 10

2 of 4

2 + ? = 10

3 of 4

10 + ? = 10

4 of 4

6 + ? = 10

Step 5: Quick Check

Show what you know.

Question 1 of 1

3 + ? = 10

What You Learned

  • Each ten pair can be written as a sum.
  • Every pair works both ways round.
  • As one part grows by one, the other shrinks by one.