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Kindergarten · lesson 1 of 4

Find a Full Ten Inside a Teen Group

Make the stated teen group and circle exactly ten marks.

About 12 minutes, plus any extended practice

Download the grade pack

Supplied materials

  • Paper and a pencil; drawing and spoken explanations are welcome. An adult may read directions and options aloud.
  • Supplied worked-case record: Draw 13 marks.
  • All quantities and shape descriptions are supplied in the worked example and questions; no purchase or personal information is needed.

Learn the idea

Teen numbers are more than ten and less than twenty. A full ten can be circled inside the group, leaving extra ones. The circle groups the marks; it does not turn them into a single counted object when finding the total.

Make the stated teen group and circle exactly ten marks. Count only the un-circled marks to name the extra ones. Say the whole as ten and the extras.

Count exactly ten marks inside the circle. Do not count the grouping circle as another object. Draw a ten-frame and then the extra marks outside it.

  1. Draw a ten-frame and then the extra marks outside it.
  2. Follow the worked example. Point to each number or shape feature and say what it tells you.
  3. Make the stated teen group and circle exactly ten marks.
  4. Try the question and then the three practice questions. Check your answers and explain any change you make.
Worked example

See the method in action

Draw 13 marks. Circle the first ten and leave three outside. The whole is 13, built from ten and three. The group-circle shows organization, while the three separate extras show how far the number is beyond ten. Count exactly ten marks inside the circle. Do not count the grouping circle as another object. Draw a ten-frame and then the extra marks outside it.

Your turn

Check your reasoning

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Helpful tips
  • Count exactly ten marks inside the circle.
  • Do not count the grouping circle as another object.
You circle ten of 12 marks. How many extra ones are outside the circle?

Feedback appears here after you check. This is practice, not a graded school assessment.

See the answer and explanation

2

Remove the full ten from the whole count. The result is 2.

Take it further

Build 19 as ten and extras. Expected: nine extra ones.

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More practice: try new cases

Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.

More practice: try new cases
1. You circle ten of 13 marks. How many extra ones are outside the circle?
Need a hint?
  • Count exactly ten marks inside the circle.
  • Do not count the grouping circle as another object.
2. You circle ten of 14 marks. How many extra ones are outside the circle?
Need a hint?
  • Count exactly ten marks inside the circle.
  • Do not count the grouping circle as another object.
3. You circle ten of 15 marks. How many extra ones are outside the circle?
Need a hint?
  • Count exactly ten marks inside the circle.
  • Do not count the grouping circle as another object.

Your choices are temporary. Feedback appears after you check all the answers.

Nothing here is saved to an account or sent to a teacher. Keep your own notes or download them before leaving. The score describes these questions; it does not certify subject mastery.

Check the subject sources

These LifeStarter passages, scenarios and exercises are authored for this Academy with AI assistance and review. External resources keep their publishers’ terms. A grade label suggests a starting level; it does not establish alignment with your school’s complete requirements.