## Big Ideas Math Book Grade K Answer Key Chapter 4 Compare Numbers to 10

### Compare Numbers to 10 Vocabulary

**Directions:**

Count the number of dog toys in front of each dog. Write each number. Circle the number that is greater than the other number.

Answer:

The Number of Dog Toys are greater than the number Dogs.

Explanation:

Number of Dogs = 2

Number of Dog Toys = 5

**Chapter 4 Vocabulary Cards**

### Lesson 4.1 Compare Groups to 10 by Matching

**Explore and Grow**

**Directions:**

Use cubes to show the number of letters. Use cubes to show the number of mailboxes. Tell which group has more and which group has less.

Answer:

The count of Letters are greater than the count of mailboxes.

Explanation:

Think and Grow

Answer:

The number of fire extension are greater than the count of caps, cameras and minks.

Explanation:

Number of caps = Seven or 7.

Number of fire extension = Nine or 9.

Number of cameras = Five or 5.

Number of mink = Six or 6.

Directions:

Draw lines between the objects in each group.

- Is the number of toothbrushes equal to the number of toothpaste tubes? Circle the thumbs up for yes or the thumbs down for no.
- Circle the group that is greater in number than the other group.
- Draw a line through the group that is less in number than the other group.

**Directions:**

Draw lines between the objects in each group.

**1**Is the number of paint palettes equal to the number of paintbrushes? Circle the thumbs up for yes or the thumbs down for no.**2**Circle the group that is greater in number than the other group.**3**Draw a line through the group that is less in number than the other group.

Apply and Grow: Practice

Question 1.

Answer:

The number of paintbrushes is greater than the number of paint palettes.

Explanation:

Number of paintbrushes = Seven or 7

Number of paint palettes = Six or 6.

Question 2.

Answer:

The number of wooden spoons are greater than the number of chef cap.

Explanation:

Number of wooden spoons = Ten or 10.

Number of chef cap = Seven or 7.

Question 3.

Answer:

The number of thermometer is greater than the number of nurse caps.

Explanation:

Number of thermometer = Eight or 8.

Number of nurse caps = Four or 4.

**Directions:**

- Draw nails on the board so that the number of nails is greater than the number of hammers. Draw lines between the objects in each group to show that you are correct.
- Draw nails on the board so that the number of nails is less than the number of hammers. Draw lines between the objects in each group to show that you are correct.

**Think and Grow: Modeling Real Life**

Answer:

a. The number of nails on the board are greater than the number of hampers.

b. The number of hampers are greater than the number of nails on the board.

Explanation:

a.

Number of nails = Seventeen or 17.

Number of hampers = Fifteen or 15.

b.

Number of nails = Twelve or 12.

Number of hampers = Fifteen or 15.

**Compare Groups to 10 by Matching Homework & Practice 4.1**

Question 1.

Answer:

The Number of Nurse caps are greater than the number of chakras.

Explanation:

Number of nurse caps = Eight or 8.

Number of wooden chakras = Six or 6.

**Directions:**

**1** Draw lines between the objects in each group. Circle the group that is greater in number than the other group.

**2** Draw lines between the objects in each group. Draw a line through the group that is less in number than the other group. **3** Draw wands on the cloth so that the number of wands is equal to the number of magician hats. Draw lines between the objects in each group to show that you are correct.

Question 2.

Answer:

The number of Screw drives are greater than the Number of Caps.

Explanation:

Number of Caps = Seven or 7.

Number of Screw drives = Nine or 9.

Question 3.

Answer:

The number of magical hats are equal to the number of wands.

Explanation:

Number of magical hats = Six or 6.

Number of wands = Six or 6.

Lesson 4.2 Compare Groups to 10 by Counting

**Explore and Grow**

**Directions:**

Use cubes to show the number of penguins. Use cubes to show the number of eggs. Tell which group has more and which group has less.

Answer:

The number of Penguins are comparatively more than the number of Eggs.

Explanation:

Number of Penguins = Eight or 8.

Number of Eggs = Six or 6.

**Directions:**

Count the objects in each group. Write each number.

- Is the number of green dots equal to the number of purple dots? Circle the thumbs up for yes or the thumbs down for no.
- Compare the numbers of blackberries and bears. Circle the number that is greater than the other number.
- Compare the numbers of bears and fish. Draw a line through the number that is less than the other number.

**Think and Grow**

Answer:

a. No, the number of Green dots are not equal to the number of Purple dots.

b. The number of Blueberries are greater than number of Bears.

c. The number of Bears are lesser than the number of Fishes.

Explanation:

a. Number of Green dots = 50

Number of Purple dots = 200

b.

Number of Blueberries = Ten or 10.

Number of Bears = Four or 4.

c.

Number of Bears = Four or 4.

Number of Fishes = Seven or 7.

**Directions:**

Count the objects in each group. Write each number. **1** Is the number of panda bears equal to the number of bamboo sticks? Circle the thumbs up for yes or the thumbs down for no. **2** Circle the number that is greater than the other number. **3** Draw a line through the number that is less than the other number.

**Apply and Grow: Practice**

Question 1.

Answer:

The number of Bears is equal to the number of Bamboo Sticks.

Explanation:

Number of Bears = Six or 6.

Number of Bamboo Sticks = Six or 6.

Question 2.

Answer:

The number of Leaves are greater than the number of Koala Bears.

Explanation:

Number of Leaves = Ten or 10.

Number of Koala Bear = Seven or 7.

Question 3.

Answer:

The number of Leaves are greater than the number of Kangaroos.

Explanation:

Number of Kangaroos = Eight or 8.

Number of Leaves = Nine or 9.

** **

**Directions:**

- Draw bananas hanging from the tree so that the number of bananas is greater than the number of monkeys. Write the number of each object. Circle the number that is greater than the other number.
- Draw bananas hanging from the tree so that the number of bananas is less than the number of monkeys. Write the number of each object. Draw a line through the number that is less than the other number.

Think and Grow: Modeling Real Life

Answer:

a. The number of Bananas are greater than the number of Monkeys.

b. The number of Bananas are lesser than the number of Monkeys.

Explanation:

a. Number of Bananas = Eight or 8.

Number of Monkeys = Seven or 7

b. Number of Bananas = Six or 6.

Number of Monkeys = Nine or 9.

**Compare Groups to 10 by Counting Homework & Practice 4.2**

Question 1.

Answer:

The number of Rabbits are Equal to the number of Carrots.

Explanation:

Number of Rabbits = Eight or 8.

Number of Carrots = Eight or 8.

Question 2.

Answer:

The number of Trees are greater than the number of Giraffes.

Explanation:

Number of Giraffes = Six or 6.

Number of Trees = Nine or 9.

**Directions:**

**1** Count the objects in each group. Write each number. Is the number of yellow counters equal to the number of red counters? Circle the thumbs up for yes or the thumbs down for no.

**2** Count the objects in each group. Write each number. Circle the number that is greater than the other number. **3** Draw hay bales in the pen so that the number of hay bales is less than the number of donkeys. Write the number of each object. Draw a line through the number that is less than the other number.

Question 3.

Answer:

The Number of Donkeys are greater than the number of hay bales.

Explanation:

Number of Donkeys = 8

Number of Hay Bales = 5

### Lesson 4.3 Compare Numbers to 10

**Explore and Grow**

Answer:

The Number of Yellow boxes in the cubes are greater than the number of Blue boxes in the cubes.

Explanation:

Number of Blue boxes in the cubes = Six or 6

Number of Yellow boxes in the cubes = Nine or 9

**Directions:**

Which number is greater than the other number? Which number is less than the other number? Use counters to show how you know.

**Think and Grow**

Answer:

The number of Yellow Stars above the line are greater than the number of Gray Stars below the line.

Explanation:

Number of Yellow Stars above the line = Ten or 10.

Number of Gray Stars below the line = Seven or 7.

Answer:

The number of Smiles below the line are greater than the number of Smiles above are line.

Explanation:

Number of Smiles above are line = One or 1.

Number of Smiles below the line = Six or 6.

**Directions:**

Compare the numbers.

- Are the numbers equal? Circle the thumbs up for yes or the thumbs down for no. Draw to show how you know.
- Circle the number that is greater than the other number. Draw to show how you know.
- Draw a line through the number that is less than the other number. Draw to show how you know.

**Apply and Grow: Practice**

Question 1.

Answer:

The number of Blue Plus symbols above the line are greater than the number of Green Plus symbols above the line.

Explanation:

Number of Green Plus symbols above the line = Five or 5

Number of Blue Plus symbols above the line = Nine or 9.

Question 2.

Answer:

The number of Yellow Moon above the line are greater than the number of Blue Moon.

Explanation:

Number of Yellow Moon above the line = Eight or 8

Number of Blue Moon below the line = Six or 6.

Question 3.

Answer:

The number of Blue arrows above the line are greater than the number of Black arrows below the line.

Explanation:

Number of Blue arrows above the line = Nine or 9.

Number of Black arrows below the line = Eight or 8.

**Directions:**

Compare the numbers. **1** Are the numbers equal? Circle the thumbs up for yes or the thumbs down for no. Draw to show how you know. **2** Circle the number that is greater than the other number. Draw to show how you know. **3** Draw a line through the number that is less than the other number. Draw to show how you know.

**Think and Grow: Modeling Real Life**

Answer:

a. The number of Flowers I have are greater than the number of Flowers my Friend has.

b. The number of Flowers my friend has are lesser than the number of Flowers I have.

Explanation:

a. Number of Flowers I have = Seven or 7.

Number of Flowers my Friend has = Six or 6.

b. Number of Flowers I have = Ten or 10.

Number of Flowers my Friend has = Nine or 9.

**Directions**

- You have a number of flowers that is greater than 6 and less than 8. Your friend has a number of flowers that is one more than 5. Write and draw how many ﬂowers you each have. Circle the number that is greater than the other number.
- You have a number of flowers that is one more than 9. Your friend has a number of flowers that is one less than 10. Write and draw how many flowers you each have. Draw a line through the number that is less than the other number.

### Compare Numbers to 10 Homework & Practice 4.3

Question 1.

Answer:

The number of clouds above the line are greater than the number of clouds below the line.

Explanation:

Number of clouds above the line = 10

Number of clouds below the line = 5

Question 2.

Answer:

The number of Triangles above the line are greater than the number of Triangles below the line.

Explanation:

Number of Triangles above the line = Nine or 9.

Number of Triangles below the line = Seven or 7.

Question 3.

Answer:

Number of Marbles I have are greater than the number of Marbles my Friend has.

Explanation:

Number of Marbles I have = Six or 6.

Number of Marbles my Friend has = Five or 5.

**
Directions:
1**Compare the numbers. Draw a line through the number that is less than the other number. Draw to show how you know.

**2**Compare the numbers. Are the numbers equal? Circle the thumbs up for yes or the thumbs down for no. Draw to show how you know.

**3**You have a number of marbles that is greater than 5 and less than 7. Your friend has a number of marbles that is one more than 4. Write and draw how many marbles you each have. Circle the number that is greater than the other number.

### Lesson 4.4 Classify Objects into Categories

**Explore and Grow**

**Directions:**

Place a yellow counter on each tree that is yellow. Place a red counter on each tree that is not yellow.

Answer:

The number of Red counters on the Trees are greater than Number of Yellow counter on the Trees

Answer:

Number of Yellow counter on the Trees = Four or 4.

Number of Red counters on the Trees = Eight or 8.

**Directions:**

- Circle the objects that are green. Cross out the objects that are not green.
- Circle the animals that are brown. Cross out the animals that are not brown.
- Circle the animals that have wings. Cross out the animals that do not have wings.

**Think and Grow**

Answer:

**Directions:
**1 Circle the pigs that have spots. Cross out the pigs that do not have spots.

2 Circle the blocks that have letters. Cross out the blocks that do have letters.

3 Circle the animals that have tails. Cross out the animals that do not have tails.

Apply and Grow: Practice

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

**Directions:**

- Circle the dogs that are black. Cross out the dogs that are not black.
- Classify the dogs another way. Circle the dogs that belong in the new category. Cross out the dogs that do not belong in the new category. Tell how you classified the dogs.

**Think and Grow: Modeling Real Life**

Answer:

a.

b.

The New type of Dogs appearance is completely different from normal dogs like different nose, eyes, tail and many more.

### Classify Objects into Categories Homework & Practice 4.4

Question 1.

Answer:

Question 2.

Answer:

**Directions:**

**1** Circle the cars that are blue. Cross out the cars that are not red. **2** Circle the toys that are balls. Cross out the toys that are not balls.

**3** Circle the animals that have stripes. Cross out the animals that do not have stripes. **4** Circle the animals that have 2 legs. Cross out the animals that do not have 2 legs. **5** Classify the books into 2 categories. Circle the books in one category. Cross out the books in the other category. Tell how you classied the books.

Question 3.

Answer:

Question 4.

Answer:

Question 5.

Answer:

The two types of Books are:

1. Closed book

2. Open Book

### Lesson 4.5 Classify and Compare by Counting

**Explore and Grow**

Answer:

**Directions:
**Classify the animals into the categories shown. Write the marks in the chart. Count the marks and write the numbers to tell how many animals are in each category. Circle the number that is greater than the other number.

Think and Grow

Answer:

**Directions:**

**1** and **2** Classify the animals into the categories shown. Write the marks in the chart. Count the marks and write the numbers to tell how many animals are in each category. Draw a line through the number that is less than the other number

**Apply and Grow: Practice**

Question 1.

Answer:

Number of Four legs Animals = Five or 5.

Number of not Four legs Animals = Eight or 8.

Question 2.

Answer:

Number of

.

**Directions:**

- Classify the buttons into the categories shown. Write the marks in the chart. Count the marks and write the numbers to tell how many buttons are in each category. Circle the number that is greater than the other number.
- Classify the buttons by color. Count the number of buttons in each category. Write each number. Circle the numbers that are equal.

**Think and Grow: Modeling Real Life**

Answer:

**Directions:**

**1**Classify the animals into the categories shown. Write the marks in the chart. Count the marks and write the numbers to tell how many animals are in each category. Circle the number that is greater than the other number.

### Classify and Compare by Counting Homework & Practice 4.5

Question 1.

Answer:

**Directions:**

**2** Classify the frogs into the categories shown. Write the marks in the chart. Count the marks and write the numbers to tell how many frogs are in each category. Draw a line through the number that is less than the other number. **3** Classify the frogs by color. Count the number of frogs in each category. Write each number. Circle the numbers that are equal.

Question 2.

Answer:

Question 3.

Answer:

### Compare Numbers to 10 Performance Task

Question 1.

Answer:

Question 2.

Answer:

**Directions:**

**1** Count the toys in each group. Write each number. Is the number of spring toys equal to the number of balls? Circle the thumbs up for yes or the thumbs down for no. **2** Classify the toys into the categories shown. Write the marks in the chart. Count the marks and write the numbers to tell how many toys are in each category. Circle the number that is greater than the other number. **3** More balls are delivered in a box. The number of balls in the box is less than the number of balls in the picture. Draw the balls in the box. Write the number of balls in the box.

### Compare Numbers to 10 Activity

**Toss and Compare**

**Directions:**

Take turns tossing a counter onto the board. If the counter lands on Newton or Descartes, choose any number from 0 to 10. Write the numbers on your Toss and Compare Numbers from 0 to 10 Recording Sheet. Circle the number that is greater than the other number. Circle both numbers if they are equal. Repeat this process until you fill your sheet.

### Compare Numbers to 10 Chapter Practice

**4.1 Compare Groups to 1o by Matching**

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

**Directions:**

Draw lines between the objects in each group.

**1** Is the number of red cherries equal to the number of black cherries? Circle the thumbs up for yes or the thumbs down for no. **2** Circle the group that is greater in number than the other group. **3** Draw a line through the group that is less in number than the other group.

**4.2 Compare Groups to 1o by Counting**

Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

**Directions:**

Count the objects in each group. Write each number.

**4** Is the number of squirrels equal to the number of acorns? Circle the thumbs up for yes or the thumbs down for no. **5** Circle the number that is greater than the other number. **6** Draw a line through the number that is less than the other number.

**4.3 Compare Numbers to 10**

Question 7.

Answer:

Question 8.

Answer:

Question 9.

Answer:

**Directions:**

Compare the numbers. **7** Are the numbers equal? Circle the thumbs up for yes or the thumbs down for no. **8** Circle the number that is greater than the other number. Draw to show how you know. **9** Draw a line through the number that is less than the other number. Draw to show how you know.

**4.4 Classify Objects into Categories**

Question 10.

Answer:

**4.5 Classify and Compare by Counting**

Question 11.

Answer:

**Directions:**

**10** Circle the buttons that have 4 holes. Cross out the buttons that do not have 4 holes. **11** Classify the animals into the categories shown. Write the marks in the chart. Count the marks and write the numbers to tell how many animals are in each category. Circle the number that is greater than the other number.

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

**Directions:**

Shade the circle next to the answer. **1** Which five frame shows the number of puzzle pieces? **2** Which basket has 0 apples? **3** Which number is greater than 8?

Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

**Directions:**

Shade the circle next to the answer. **4** Which block belongs in the group? **5** Which ticket shows the numbers 1 to 5 in order? **6** Which group does not have 7 balls?

Question 7.

Answer:

Question 8.

Answer:

Question 9.

Answer:

**Directions**

**7** Count the flowers. Color the boxes to show how many. **8** Count the salamanders. Say the number. Write the number. **9** Draw lines between the objects in each group. Is the number of detective hats equal to the number of magnifying glasses? Circle the thumbs up for yes or the thumbs down for no.

Question 10.

Answer:

Question 11.

Answer:

The number of Frogs are greater than the Number of Lotus.

Explanation:

Number of Frogs = Five or 5.

Number of Lotus = Three or 3.

Question 12.

Answer:

**Directions:**

**10** Count the objects in each group. Write each number. Circle the number that is greater than the other number. **11** Draw lines between the objects in each group. Draw a line through the group that is less in number than the other group. **12** Draw 4 pieces of string. Is the number of pieces of string equal to the number of buttons? Circle the thumbs up for yes or the thumbs down for no.