All the solutions provided in **McGraw Hill My Math Grade 3 Answer Key PDF Chapter 10 Review **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 3 Chapter 10 Review Answer Key

**Vocabulary Check**

**Draw lines to match each with its definition.**

Answer:

**Concepts Check**

**Write how many equal parts. Shade one part. Write its unit fraction.**

Question 6.

____________ equal parts

unit fraction: _____________

Answer:

The circle is divided into three equal parts.

The unit fraction is 1/3

Question 7.

____________ equal parts

unit fraction: _____________

Answer:

The rectangle is divided into 6 equal parts.

The unit fraction is 1/6.

**Write the missing numerator or denominator to show the shaded part.**

Question 8.

Answer:

There are 4 starts and out of them 3 are shaded.

So, the fraction is 3/4.

Question 9.

Answer:

There are 6 leaves.

4 are shaded.

So, the fraction is 4/6.

Question 10.

Write the point that represents the fraction. \(\frac{6}{8}\) is represented by point _____________.

Answer:

\(\frac{6}{8}\) is represented by point C.

**Complete each number sentence to show equivalent fractions.**

Question 11.

Answer:

The equivalent fraction of 2/4 is 4/8

Question 12.

Answer:

The equivalent fraction of 2/3 is 4/6

**Write each whole number as a fraction.**

Question 13.

3 =

Answer:

3 = 9/3

The whole number 3 in the fraction form can be written as 9/3.

Question 14.

6 =

Answer:

6 = 18/3

The whole number 6 in the fraction form can be written as 18/3

Question 15.

4 =

Answer:

4 = 24/6

The whole number 4 in the fraction form can be written as 24/6

**Use the models to compare. Use >, <,or =.**

Question 16.

Answer:

The denominators of the fraction are same.

The numerator with the highest number will be the greatest fraction.

1/8 < 3/8

Question 17.

Answer:

2/4 >2/6

The denominator with the highest number will be the smallest fraction.

**Problem Solving**

Question 18.

Emma has 3 black cats and 1 gray cat. What fraction of the set of cats is gray?

Answer:

Given,

Emma has 3 black cats and 1 gray cat.

The fraction of the set of cats is gray is 1/3

Question 19.

Lucy walks \(\frac{3}{4}\) of a mile. Sergio walks \(\frac{3}{6}\) of a mile. Who walks farther?

Answer:

Given,

Lucy walks \(\frac{3}{4}\) of a mile.

Sergio walks \(\frac{3}{6}\) of a mile.

The denominator with the highest number will be the smallest fraction.

\(\frac{3}{4}\) > \(\frac{3}{6}\)

Thus Lucy walks farther than Sergio.

**Solve Exercises 20 and 21 by drawing a diagram.**

Question 20.

A music CD tower can hold 10 compact discs. One-half of the slots are filled with CDs. How many CDs are in the CD tower?

Answer:

Given,

A music CD tower can hold 10 compact discs. One-half of the slots are filled with CDs.

10 × 1/2 = 5

Thus there are 5 CDs in the CD tower.

Question 21.

There are 16 students in the school play. One-fourth of the students are wearing yellow costumes. Six students are wearing purple costumes. The remaining students are wearing orange costumes. How many students are wearing orange costumes?

Answer:

Given,

There are 16 students in the school play. One-fourth of the students are wearing yellow costumes.

16 × 1/4 = 4

4 students are wearing yellow costumes.

Six students are wearing purple costumes.

4 + 6 = 10

So, 6 students are wearing orange costumes.

**Test Practice**

Question 22.

Melinda and Ruben are playing tic-tac-toe. Melinda has Xs in one-third of the 9 places. Ruben has Os in 2 of the places. How many squares are empty?

(A) 3 squares

(B) 4 squares

(C) 7 squares

(D) 11 squares

Answer:

Given,

Melinda and Ruben are playing tic-tac-toe. Melinda has Xs in one-third of the 9 places.

1/3 × 9 = 3 places

3 + 2 = 5

9 – 5 = 4

Thus 4 squares are empty.

Option B is the correct answer.

**Reflect**

Use what you learned about fractions to complete the graphic organizer.

Reflect on the ESSENTIAL QUESTION ? Write your answer below.

Answer: