Practice with the help of **Spectrum Math Kindergarten Answer Key Chapter 3 Addition and Subtraction** regularly and improve your accuracy in solving questions.

## Spectrum Math Kindergarten Chapter 3 Addition and Subtraction Answers Key

**Lesson 3.1 Adding More (Addition)**

Two kittens are joined by one more kitten. Count the total number of kittens. Trace the number that shows how many kittens there are now.

Answer:

Explanation:

Two kittens are joined by one more kitten

I counted the total number of kittens

2 + 1 = 3

So, I traced the number 3 to show the number of kittens.

There are 3 frogs on one lily pad and I frog on another lily pad. Count the number of frogs altogether. Trace the number that shows the number of frogs.

Answer:

Explanation:

There are 3 frogs on one lily pad and I frog on another lily pad

I counted the number of frogs altogether

3 + 1 = 4

4 is the number that shows the number of frogs

So, I traced the number 4.

**Lesson 3.2 Taking Away (Subtraction)**

There are 3 fish in a pond. One swims away. Count the number of fish that are left. Trace the number that shows how many fish are left.

Answer:

Explanation:

There are 3 fish in a pond

One swims away

I crossed out 1 fish and counted the number of fishes left

3 – 1 = 2

2 fishes are left

So, I traced the number 2 as it shows the number of fishes left now.

There are 4 baseball caps hanging on a hat rack. One cap is taken away. Count the number of caps that are left. Trace the number that shows how many caps are left.

Answer:

Explanation:

There are 4 baseball caps hanging on a hat rack

One cap is taken away

I crossed out 1 cap

4 – 1 = 3

3 caps are left

So, I traced the number 3 as it shows the number of caps left.

**Lesson 3.3 Adding Through 3**

Count the total number of objects in each section. Write the number on the line.

Answer:

Explanation:

I counted the number of objects in each section and wrote the numbers on the line

2 + 1 = 3, 3 + 0 = 3, 1 + 2 3 and 0 + 2 = 2.

**Lesson 3.4 Subtracting Through 3**

Count the number of objects left after the crossed-out objects are removed. Write the number of remaining objects on the line.

Answer:

Explanation:

I counted and wrote the number of objects left after the crossed-out objects are removed and wrote the numbers on the line

1 – 1 = 0, 2 – 1 = 1, 3 – 2 = 1 and 3 – 0 = 3.

**Lesson 3.5 Adding To 4 And 5**

Count the total number of objects in each section. Write the number on the line.

Answer:

Explanation:

I counted the total number of objects in each section and wrote the numbers on the line

2 + 2 = 4, 3 + 1 = 4, 1 + 4 = 5 and 2 + 3 = 5.

**Lesson 3.6 Subtracting From 4 And 5**

Count the number of objects left after the crossed-out objects are removed. Write the number of remaining objects on the line.

Answer:

Explanation:

I counted and wrote the number of objects left after the crossed-out objects are removed and wrote the numbers on the line

4 – 1 = 3, 5 – 2 = 3, 5 – 4 = 1 and 4 – 2 = 2.

**Lesson 3.7 Adding To 6 And 7**

Count the total number of objects in each section. Write the number on the line.

Answer:

Explanation:

I counted the total number of objects in each section and wrote the numbers on the line

2 + 5 = 7, 4 + 2 = 6, 3 + 3 = 6 and 4 + 3 = 7.

**Lesson 3.8 Subtracting From 6 And 7**

Count the number of objects left after the crossed-out objects are removed. Write the number of remaining objects on the line.

Answer:

Explanation:

I counted and wrote the number of objects left after the crossed-out objects are removed and wrote the numbers on the line

6 – 4 = 2, 7 – 2 = 5, 7 – 6 = 1 and 6 – 3 = 3.

**Lesson 3.9 Adding To 8 And 9**

Count the total number of objects in each section. Write the number on the line.

Answer:

Explanation:

I counted the number of objects in each section and wrote the numbers on the line

4 + 5 = 9, 6 + 2 = 83 + 6 = 9 and 7 + 1 = 8.

**Lesson 3.10 Subtracting From 8 And 9**

Answer:

Explanation:

I counted and wrote the number of objects left after the crossed-out objects are removed and wrote the numbers on the line

8 – 3 = 5, 9 – 6 = 3, 8 – 5 = 3 and 9 – 4 = 5.

**Lesson 3.11 Making 10**

Count the total number of objects in each section. Circle the number that makes 10.

Answer:

Explanation:

I counted the total number of objects in each section

I drew a circle around the numbers that match with the number sentences and makes 10

7 + 3 = 10, 8 + 2 = 10, 5 + 5 = 10 and 9 + 1 = 10.

**Lesson 3.12 Subtracting From 10**

Answer:

Explanation:

I counted and wrote the number of objects left after the crossed-out objects are removed and wrote the numbers on the line

10 – 7 = 3, 10 – 2 = 8, 10 – 5 = 5 and 10 – 1 = 9.

**Lesson 3.13 Adding Numbe****rs**

Add.

Answer:

Explanation:

I added the given numbers and wrote their sums

3 + 1 = 4, 2 + 2 = 4, 0 + 5 = 5 and 4 + 1 = 5.

Subtract.

Answer:

Eplanation:

I subtracted the given numbers and wrote their differences

2 – 1 = 1, 3 – 0 = 3, 1 – 1 – 0 and 4 – 3 = 1.