Practice with the help of **Spectrum Math Grade 1 Answer Key Chapter 4 Lesson 4.5**** Addition and Subtraction Practice through 100** regularly and improve your accuracy in solving questions.

## Spectrum Math Grade 1 Chapter 4 Lesson 4.5 Addition and Subtraction Practice through 100 Answers Key

**Add.**

Answer:

The addition of the two given numbers is 16.

Explanation:

Answer:

The addition of the two given numbers is 25.

Explanation:

Answer:

The addition of the two given numbers is 35.

Explanation:

Answer:

The addition of the two given numbers is 33.

Explanation:

Answer:

The addition of the two given numbers is 44.

Explanation:

Answer:

The addition of the two given numbers is 58.

Explanation:

Answer:

The addition of the two given numbers is 76.

Explanation:

Answer:

The addition of the two given numbers is 65.

Explanation:

Answer:

The addition of the two given numbers is 27.

Explanation:

Answer:

The addition of the two given numbers is 84.

Explanation:

Answer:

The addition of the two given numbers is 100.

Explanation:

Answer:

The addition of the two given numbers is 93.

Explanation:

Answer:

The addition of the two given numbers is 34.

Explanation:

Answer:

The addition of the two given numbers is 85.

Explanation:

Answer:

The addition of the two given numbers is 16.

Explanation:

Answer:

The addition of the two given numbers is 54.

Explanation:

Answer:

The addition of the two given numbers is 73.

Explanation:

**Subtract.**

Answer:

The subtraction of the two given numbers is 10.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 2 – 1 = 1 ten. Hence the answer is 10.

Answer:

The subtraction of the two given numbers is 10.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 7 – 6 = 1 tens. Hence the answer is 10.

Answer:

The subtraction of the two given numbers is 20.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 4 – 2 = 2 tens. Hence the answer is 20.

Answer:

The subtraction of the two given numbers is 10.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 8 – 7 = 1 ten. Hence the answer is 10.

Answer:

The subtraction of the two given numbers is 50.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 6 – 1 = 5 tens. Hence the answer is 50.

Answer:

The subtraction of the two given numbers is 20.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 8 – 6 = 2 tens. Hence the answer is 20.

Answer:

The subtraction of the two given numbers is 10.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 9 – 8 = 1 ten. Hence the answer is 10.

Answer:

The subtraction of the two given numbers is 40.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 6 – 3 = 3 tens. Hence the answer is 30.

Answer:

The subtraction of the two given numbers is 0.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 2 – 2 = 3 tens. Hence the answer is 0.

Answer:

The subtraction of the two given numbers is 30.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 4 – 1 = 3 tens. Hence the answer is 30.

Answer:

The subtraction of the two given numbers is 50.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 9 – 4 = 5 tens. Hence the answer is 50.

Answer:

The subtraction of the two given numbers is 30.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 9 – 6 = 3 tens. Hence the answer is 30.

Answer:

The subtraction of the two given numbers is 0.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 6 – 6 = 6 tens. Hence the answer is 0.

Answer:

The subtraction of the two given numbers is 10.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 3 – 2 = 1 tens. Hence the answer is 10.

Answer:

The subtraction of the two given numbers is 60.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 7 – 1 = 6 tens. Hence the answer is 60.

Answer:

The subtraction of the two given numbers is 20.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 4 – 2 = 2 tens. Hence the answer is 20.

Answer:

The subtraction of the two given numbers is 10.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 6 – 5 = 1 ten. Hence the answer is 10.

Answer:

The subtraction of the two given numbers is 60.

Explanation:

1. First subtract ones and write in the one’s place. Subtract 0 – 0 = 0 ones

2. Subtract tens and write in the ten’s place. Subtract 8 – 2 = 6 tens. Hence the answer is 60.

**Solve each problem.**

There are 30 .

Ten fly away.

How many are left? <u>20</u>

I have 19

I have 6

What is the sum? ____

Answer:

The sum of the fruits is 25.

Explanation:

He has 19 bananas.

He has 6 oranges.

The sum of the fruits is 19 + 6 = 25 fruits.

There are 40

We drink 10

How many are left? _____

Answer:

There are 30 bottles left.

Explanation:

Given,

There are 40 bottles.

They drank 10 bottles.

The water bottles left are 40 – 10 = 30 bottles left.

There are 38 .

8 more drive up.

How many are there in all? _____

Answer:

There are a total of 46 cars in all.

Explanation:

Given,

There are 38 cars.

In this 8 more are driven up.

Total cars drove = 38 + 8 = 46 cars in all.

I want 80

I have 30

How many more do I need? ____

Answer:

He needs 50 pencils more.

Explanation:

Given,

He wants 80 pencils.

He has 30 pencils.

He needs 80 – 30 = 50 more pencils.