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🍕 2nd grade math · Fractions & Decimals

Halves, thirds and fourths

Thirds are 3 equal parts of a whole. Equal shares must be the same size.

Worked example

Which picture shows a circle cut into halves (two equal parts that are the same size)?
ABC
Answer: Picture A
Halves are two equal parts that are the same size. Only one picture has 2 parts that all match.

For grown-ups: Halves, thirds, fourths of shapes; equal shares need not be the same shape. Below: three problems to try with the worked answers, and a free printable sheet. Children can practise the same skill as a game, with no sign-up and no ads.

  • CCSS 2.G.A.3
What this practises, for teachers

Practices halves, thirds, fourths of shapes; equal shares need not be the same shape (2.G.A.3). A printable sheet with its answer key, worked answers on the page, no accounts.

▶ Practise it

For your class

🖨️ Printable sheet and key

On the board with this skill:

Try three

  1. Which picture shows a rectangle cut into thirds (three equal parts that are the same size)?
    ABC
    Show the answer and how
    Answer: Picture B
    Thirds are three equal parts that are the same size. Only one picture has 3 parts that all match.
  2. Which picture shows a rectangle cut into thirds (three equal parts that are the same size)?
    ABC
    Show the answer and how
    Answer: Picture A
    Thirds are three equal parts that are the same size. Only one picture has 3 parts that all match.
  3. Which picture shows a rectangle cut into thirds (three equal parts that are the same size)?
    ABC
    Show the answer and how
    Answer: Picture A
    Thirds are three equal parts that are the same size. Only one picture has 3 parts that all match.

Before and after

Learn first: Halves and fourths (1st)

Comes next: What is one-third? (3rd)

Name: ____________________Date: ____________Score: ____ / 12

Halves, thirds and fourths (2nd grade)

  1. Which picture shows a circle cut into thirds (three equal parts that are the same size)?
    ABC
  2. Which picture shows a rectangle cut into halves (two equal parts that are the same size)?
    ABC
  3. Which picture shows a circle cut into thirds (three equal parts that are the same size)?
    ABC
  4. Which picture shows a circle cut into thirds (three equal parts that are the same size)?
    ABC
  5. Which picture shows a rectangle cut into halves (two equal parts that are the same size)?
    ABC
  6. Which picture shows a circle cut into thirds (three equal parts that are the same size)?
    ABC
  7. Which picture shows a circle cut into thirds (three equal parts that are the same size)?
    ABC
  8. Which picture shows a circle cut into halves (two equal parts that are the same size)?
    ABC
  9. Which picture shows a rectangle cut into halves (two equal parts that are the same size)?
    ABC
  10. Which picture shows a circle cut into thirds (three equal parts that are the same size)?
    ABC
  11. Which picture shows a rectangle cut into fourths (four equal parts that are the same size)?
    ABC
  12. Which picture shows a circle cut into halves (two equal parts that are the same size)?
    ABC

Answer key

  1. Picture C
  2. Picture B
  3. Picture A
  4. Picture B
  5. Picture C
  6. Picture C
  7. Picture C
  8. Picture B
  9. Picture B
  10. Picture C
  11. Picture A
  12. Picture A

More 2nd grade skills: all 2nd grade math skills, or every grade at math skills.