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Making ten, breaking numbers apart

Find the partner that completes ten and split other small wholes.

Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.

1. What you will learn

Use a ten-frame to find a missing part and check both parts together.

2. Part words

TermWhat it means
pairTwo amounts considered together.
emptyA place with no counter yet.

3. The frame holds ten

A ten-frame has two rows of five places. Put one counter in each place, starting along the top. Seven counters leave three empty places. Seven and three make ten. We can see what is there and what is missing without moving the frame.

Another way: picture

A two-row frame of ten equal cells. The first row's five cells and the second row's first two cells contain dots. Three cells are empty.
A two-row frame of ten equal cells. The first row's five cells and the second row's first two cells contain dots. Three cells are empty.

Five filled cells above, two below, and three empty cells.

4. Trade one between parts

Move one counter from a group of seven to a group of three. Now the parts are six and four, but the whole is still ten. Try five and five next. List the pairs or say them with a partner. When a problem names a different whole, build that whole instead. Two and three make five, not ten. Always check both parts against the stated whole.

5. How many more fill the seven-dot frame?

  1. Count the empty cells.

    3

    Each empty cell needs one counter.

  2. Check the complete frame.

    7 + 3 = 10

    Every one of its ten cells is filled.

6. Nine places are filled. Complete ten.

  1. Find the unfilled place.

    1

    Only one of ten cells is empty.

  2. Your turn: work this step out. Its working is at the end of the packet.

    Join the two parts.

7. Guided practice

Find the empty part that makes ten.

1 + b = 10

Audio transcript: None

8. Guided practice

A tray has room for ten cups. 6 cups are there. How many more fit?

Answer:

9. Practice

Break this amount into the two parts shown.

4 = 0 + p

Audio transcript: None

10. Somewhere new

Match each filled-place count to the empty places in a new ten-place rack.

8 empty7 empty6 empty
2 filled
3 filled
4 filled

Audio transcript: None

11. Lesson test

Lesson test: one question per skill, one attempt each, no hints. Your answers are checked when you submit.

12. Test question

Find the empty part that makes ten.

10 + b = 10

Audio transcript: None

13. What you can do now

Without looking, say what goes with seven to make ten. Show how you can check.

Working for the steps left to you

6. Nine places are filled. Complete ten., step 2

9 + 1 = 10

The frame is now full.