Addition And Subtraction 1

In this article, we will learn about Addition and Subtraction. The learning objectives are:

1. Addition without renaming
2. Addition with renaming
    

Topic Recap: 

Addition Within 100 Without Renaming 

Example: 

Jerry went to an arcade. He won 38 tickets from his first game and 21 tickets from his second game. How many tickets did he win altogether from the 2 games?

Solution:

\(38 + 21 = 59\)

Answer: 

59 tickets

Question 1: 

Add 50 to 25.  

1. 25
2. 26
3. 73
4. 75

Solution:

\(50 + 25 = 75\)

Answer: 

(4) 75

1. Addition Without Renaming

Example:

There are 453 boys and 216 girls in a school. How many boys and girls are there in the school altogether?

Solution:

\(453 + 216 = 669\)

Answer: 

669 boys and girls

Question 1: 

Add 402 to 256.

1. 254
2. 608
3. 658
4. 659

Solution:

\(402 + 256 = 658\)

Answer: 

(3) 658

Question 2:

Add 654 to 123.

1. 767
2. 777
3. 778
4. 779

Solution:

\(654 + 123 = 777\)

Answer:

(2) 777

Topic Recap:

Addition Within 100 With Renaming

Example: 

Kenny collects stamps. He has 67 foreign stamps and 28 local stamps. How many stamps does he have altogether?

Solution: 

\(67 + 28 = 95\)

Answer:

95 stamps

Question 2: 

Add 39 to 45.

1. 73                                                              
2. 74                                                        
3. 83                                                       
4. 84     

Solution: 

\(39 + 45 = 84\)

Answer: 

(4) 84

2. Addition With Renaming

Example: 

There are 378 adults and 414 children in the estate. How many people are there in the estate altogether?

Solution: 

\(378 + 414 = 792\)              

Answer: 

792 people

Question 1: 

Add 316 to 497.

1. 703                                                        
2. 803
3. 813
4. 913

Solution:

\(316 + 497 = 813\)

Answer: 

(3) 813

Question 2:

The sum of 237 and 508 is __________.

1. 733
2. 735
3. 743
4. 745

Solution:

\(237 + 508 = 745\)

Answer:

(4) 745 

Question 3:

Use the numbers below to form an addition sentence. You can use numbers more than once. 

Solution:

Answer: 

\(115 + 65 = 180\)

Question 4:

\(280 + 120 =\) __________ tens

1. 30
2. 40
3. 300
4. 400

Solution:

\(280 + 120 = 400\)

\(400 = 40\) tens

Answer: 

(2) 40

Question 5:

\(278 + 222 =\) __________ hundreds

1. 5
2. 40
3. 50
4. 4

Solution:

\(278 + 222 = 500\)

\(500 = 50\) tens

Answer: 

(1) 5

Question 6:

Fill in the blank with the correct answer:

1. 46
2. 232
3. 837
4. 847

Solution:

23 tens 2 ones 

\(\begin{align}​​ &= 230 + 2 \\[2ex] &= 232  \end{align}\)

6 hundreds 15 ones \(= 615\)

\(232 + 615 = 847\)

Answer:

(4) 847

Question 7: 

Fill in the blanks with the correct answer:

1. 7
2. 70
3. 700
4. 709

Solution:

39 tens 18 ones

\(\begin{align}​​ &= 390 + 18\\[2ex] &= 408  \end{align}\)

27 tens 31 ones

\(\begin{align}​​ &= 270 + 31\\[2ex] &= 301  \end{align}\)

\(408+301=709\)

Answer:

(4) 709

Question 8:

What is the missing digit in the box?

1. 0
2. 8
3. 9
4. 4

Solution:

Answer: 

(3) 9

Question 9: 

Kate added two of the numbers below and got the answer 108. Which two numbers did she add?

1. A and C
2. A and B
3. B and C
4. B and D

Solution: 

Let’s calculate the options. 

1. \(69 + 49 = 118\)
2. \(69 + 59 = 128\)
3. \(59 + 49 = 108\)
4. \(59 + 19 = 78\)

Answer: 

(3) B and C

Conclusion

In this article, we have learnt Addition and Subtraction:

• Addition without renaming
• Addition with renaming