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

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.

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.

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.

Explanation:
There are 3 fish in a pond
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.

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.

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

Explanation:
I counted the number of objects in each section and wrote the numbers on the line
2 + 1 = 3, 3 + 0 = 3, 1 + 2Â  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.

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.

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.

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.

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.

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.

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

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

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.

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

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

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.

Explanation:
I added the given numbers and wrote their sums
3 + 1 = 4, 2 + 2 = 4, 0 + 5 = 5 and 4 + 1 = 5.

Subtract.