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Kindergarten · lesson 2 of 4

Write Ten Plus the Extra Ones

Read the full-ten amount and the extra ones.

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: One full ten and six extra ones make 16.
  • All quantities and shape descriptions are supplied in the worked example and questions; no purchase or personal information is needed.

Learn the idea

A drawing of a full ten and extra ones can be recorded with a number sentence. The plus sign joins the quantities. The teen numeral names their combined amount. The written sentence should keep the same count as the drawing.

Read the full-ten amount and the extra ones. Count on from ten for the extras, then write ten plus extras equals the teen total. Check by counting every mark in the model.

Say the extras separately from the whole. Ten plus six is sixteen, not six. Keep the full ten separate from the extra marks in the drawing.

  1. Keep the full ten separate from the extra marks in the drawing.
  2. Follow the worked example. Point to each number or shape feature and say what it tells you.
  3. Read the full-ten amount and the extra ones.
  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

One full ten and six extra ones make 16. Count 11, 12, 13, 14, 15, 16 for the six extras. Write 10 + 6 = 16. The 6 names extra ones, while 16 names the whole group. Say the extras separately from the whole. Ten plus six is sixteen, not six. Keep the full ten separate from the extra marks in the drawing.

Your turn

Check your reasoning

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Helpful tips
  • Say the extras separately from the whole.
  • Ten plus six is sixteen, not six.
A drawing has one full ten and 2 extra ones. What is the whole number?

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

See the answer and explanation

12

Join ten with the extra ones. The result is 12.

Take it further

Write a sentence for ten and eight extras. Expected: 10+8=18.

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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. A drawing has one full ten and 3 extra ones. What is the whole number?
Need a hint?
  • Say the extras separately from the whole.
  • Ten plus six is sixteen, not six.
2. A drawing has one full ten and 4 extra ones. What is the whole number?
Need a hint?
  • Say the extras separately from the whole.
  • Ten plus six is sixteen, not six.
3. A drawing has one full ten and 5 extra ones. What is the whole number?
Need a hint?
  • Say the extras separately from the whole.
  • Ten plus six is sixteen, not six.

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.