All the solutions provided in **McGraw Hill My Math Grade 2 Answer Key PDF Chapter 12 Lesson 7 Halves, Thirds, and Fourths **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 12 Lesson 7 Halves, Thirds, and Fourths

**Explore and Explain**

Teacher Directions: Use square. triangle, and trapezoid pattern blocks to cover each shape Trace the blocks to show the shapes you used Write how many blocks you used to cover each shape.

Answer:

**See and Show**

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

Three equal parts or three thirds. Each part is a third of the whole.

Four equal parts or four fourths. Each part is a fourth of the whole.

**Describe the equal parts. Write two halves, three thirds, or four fourths.**

Question 1.

Answer:

Two halves

Explanation:

A square is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

Question 2.

Answer:

four fourths

Explanation:

A circle is divided into 4 equal parts

Four equal parts or four fourths. Each part is a fourth of the whole.

Question 3.

Answer:

three thirds

Explanation:

A rectangle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

Question 4.

Answer:

three thirds

Explanation:

A circle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

**Draw lines to partition each shape.**

Question 5.

2 equal parts

Answer:

Explanation:

A Rectangle is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

Question 6.

4 equal parts

Answer:

Explanation:

A square is divided into 4 equal parts

Four equal parts or four fourths. Each part is a fourth of the whole.

**Talk Math**

Explain how you can divide a pie so that four people each get an equal part.

Answer:

The pie looks like a circle

The circle is divided in to 4 equal parts

With the help of a line of symmetry

**On My Own**

**Describe the equal parts. Write two halves, three thirds, or four fourths.**

Question 7.

Answer:

three thirds

Explanation:

A circle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

Question 8.

Answer:

two halves

Explanation:

A circle is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

**Draw lines to partition each shape.**

Question 9.

4 equal parts

Answer:

Explanation:

A square is divided into 4 equal parts

Four equal parts or four fourths. Each part is a fourth of the whole.

Question 10.

2 equal parts

Answer:

two halves

Explanation:

A circle is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

Question 11.

3 equal parts

Answer:

three thirds

Explanation:

A Rectangle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

Question 12.

2 equal parts

Answer:

Two halves

Explanation:

A square is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

**Partition the shape in a different way. Show the same number of equal parts.**

Question 13.

Answer:

Explanation:

A rectangle is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

Question 14.

Answer:

Explanation:

A Square is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

Question 15.

Answer:

Explanation:

A square is divided into 4 equal parts

Four equal parts or four fourths. Each part is a fourth of the whole.

Question 16.

Answer:

Explanation:

A Rectangle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

**Problem Solving**

Question 17.

Eva’s mom bought a pizza. Eva ate one equal part. Her friend ate one equal part. There was one equal part left for Eva’s mom. How much of the pizza was left for Eva’s mom?

_________ of the pizza

Answer:

One third of the pizza

Explanation:

Eva’s mom bought a pizza.

Eva ate one equal part. Her friend ate one equal part.

There was one equal part left for Eva’s mom.

2 parts were finished so, 1 part is left.

Question 18.

Grucie had a round slice of watermelon. She and her sister shared the slice equally. How much did each girl eat?

________ of the watermelon slice

Answer:

Half of the watermelon slice

Explanation:

Grucie had a round slice of watermelon. She and her sister shared the slice equally.

so, each girl ate half of the whole.

Question 19.

Sadie is making a picture for her cousin. She folds a piece of paper in half. Then she folds it in half again. She opens the paper. How many equal ports are there?

Answer:

4 equal parts

Explanation:

Sadie is making a picture for her cousin.

She folds a piece of paper in half.

Then she folds it in half again. She opens the paper.

There are 4 equal parts.

**HOT Problem** Show the same number of equal parts in two different ways.

Answer:

It cannot be divided in to 2 different ways

### McGraw Hill My Math Grade 2 Chapter 12 Lesson 7 My Homework Answer Key

**Practice**

**Describe the equal parts Write two halves, three thirds, or four fourths.**

Question 1.

Answer:

three thirds

Explanation:

A circle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

Question 2.

Answer:

three thirds

Explanation:

A circle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

Question 3.

Answer:

four fourths

Explanation:

A circle is divided into 4 equal parts

Four equal parts or four fourths. Each part is a fourth of the whole.

Question 4.

Answer:

Two halves

Explanation:

A Rectangle is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

**Draw lines 10 partition each shape.**

Question 5.

3 equal parts

Answer:

three thirds

Explanation:

A Square is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

Question 6.

2 equal parts

Answer:

two halves

Explanation:

A circle is divided into 2 equal parts

You can partition, or separate, shapes into equal parts.

Two equal parts or two halves. Each part is half of the whole.

Question 7.

4 equal parts

Answer:

four fourths

Explanation:

A Rectangle is divided into 4 equal parts

Four equal parts or four fourths. Each part is a fourth of the whole.

Question 8.

Nora and Brooke are sharing a sandwich. They each have an equal part. How much of the sandwich does each girl have?

_____________ sandwich

Answer:

Half sandwich

Explanation:

Nora and Brooke are sharing a sandwich.

They each have an equal part.

half of the sandwich that each girl have.

**Partition the shape in a different way. Show the same number of equal shares.**

Question 9.

Answer:

Explanation:

A Rectangle is divided into 3 equal parts

Three equal parts or three thirds. Each part is a third of the whole.

Question 10.

Answer:

Explanation:

A square is divided into 4 equal parts

Four equal parts or four fourths. Each part is a fourth of the whole.

**Vocabulary Check**

**Color each shape as described.**

Question 12.

one half green

Answer:

Explanation:

Circle is divided into 2 equal parts

and one half is colored with green

Question 13.

one fourth blue

Answer:

Explanation:

A square is divided into 4 equal parts

One fourth is colored blue.

Question 14.

one third red

Answer:

Explanation:

The rectangle is divided into 3 parts

One third of rectangle is colored red.

**Math at Home** Cut your child’s food into either halves, thirds, or fourths. Ask him or her to identify how many equal parts you have created.

Answer:

The pizza is equally divided into 8 parts.

That is fourts