In this 1stgrade mathematics worksheet, we will explore the addition operation. The addition is the basic mathematical operation where the sum of a few numbers is found out. The numbers that are added are called addends and the result is called sum. So
Number 1 + Number 2 + Number 3 + .. = Sum
Refer to the below mentioned image which shows that by adding number 6 with number 5 we get 11 as sum or result. Similarly 13+12=25.
Note that addition can be performed in any order and result will always be the same; for example 6+5 or 5+6 in the below image will give a sum of 11.
A plus (+) Sign indicates an addition operation.
Let’s start solving the addition worksheets for grade 1.
Q1. Fill in the missing part in the given addition worksheets for grade 1
 ____ + 6 = 8
 ____ + 5 = 9
 ____ + 3 = 7
 ____ + 4 = 8
 ____ + 2 = 9
 4 + ___ = 8
 5 + ___ = 7
 2 + ___ = 3
Q2. Find the sum in the following addition worksheet for grade 1
 5 + 2 = ____________
 4 + 1 = ____________
 3 + 0 = ____________
 6 + 3 = ____________
 7 + 4 = ____________
 9 + 9 = ____________
 5 + 1 = ____________
 6 + 5 = ____________
 8 + 7 = ____________
Q3. Addition worksheet for adding whole tens
 20 + 10 = ________
 40 + 20 = ________
 70 + 10 = ________
 80 + 30 = ________
 50 + 50 = ________
 60 + 20 = ________
 90 + 10 = ________
 40 + 30 = ________
Q4. Mental math addition problems for grade1 kids
 1 more than 3 tens is _____.
 10 more than 5 tens is _____.
 2 tens and 5 once make ____.
 Two more than 98 is ______.
 66 is ____ tens + _____ones.
 How many ones are there in 55.?
 How many tens are there in 82?
 70 + 20 + 0 in short form is ______.
 1 more than 99 is_________.
Q5. Solve the following Addition worksheet problems and write the sum as numbers.
 Four tens + Three ones =_________
 Six tens + Two ones =___________
 Three tens + Eight ones =________
 Seven tens + Eight ones =________
 Five tens + Five ones =__________
Q6. Solve the following addition worksheets for grade 1 students.
 Eight dolphins are jumping in the sea. Two more dolphins join them. How many dolphins are there in all?
 Seven giraffes are walking one behind the other. Two more join them. So, total how many giraffes are there?
 Nine flowers are there in a vase. 6 more are added to it. Now, how many flowers are there in the vase in total?
 Seven cats and Nine dogs are playing in a playground. Total how many animals are playing in the ground?
 Four birds were sitting in a tree and singing a song. Three more birds join them. So, How many birds are singing?
 My mother gave me 5 chocolates. But I want 4 more chocolates. Upon request, she gave me 2. How many total chocolates are there with me?
Q7. Find the missing addend and solve the belowmentioned addition worksheets for grade 1.
2 + 3 + 2 + ____ = 9 
3 + 3 + 1 + ____ = 7 
4 + 1 + 1 + ____ = 8 
2 + 5 + 2 + ____ = 10 
5 + 4 + 2 + ____ = 14 
6 + 3 + 1 + ____ = 20 
8 + 5 + 1 + ____ = 15 
Q8. Balance both sides of the equations related to addition worksheet problems.
 3 + 6 = ___ + 3
 1 + 9 = 9 + ___
 2 + 7 = 7 + ___
 5 + 3 = ___ + 5
 6 + __=1 + 6
 9 + __ = __ + 8
 __+ 3 = 3 +__
Q9. Circle the numbers that add up to 10 then write the final addition.
3 + 5 + 7 

4 + 2 + 8 

1 + 9 + 6 

6 + 4 + 1 

5 + 9 + 5 

7 + 3 + 2 

8 + 2 + 3 

4 + 5 + 6 

Q10. Look at the numbers given below. Choose a pair of numbers that add up to 15. How many pairs are there?
7 8 4 10
3 12 6 5
11 14 9 8
4 1 13 2
Q11. Fill the missing values to complete the addition pattern
Q12. Count the blocks and fill in the boxes.
Q13. Match Column A with Column B to solve the 1stgrade addition worksheet problems
ColumnA  ColumnB  
15+6  Fiftyeight  
37+3  Thirty  
29+7  Fiftytwo  
42+2  Fortyone  
51+1  Thirtysix  
38+3  Forty  
22+8  Fortyfour  
50+8  Twentyone 
Q14. Solve the following addition worksheets in your mind and then circle the biggest number.
14+4 18+1 12+5 
22+5 25+4 23+1 
44+1 41+8 46+2 
60+8 66+3 64+1 
39+0 34+4 31+5 
76+3 77+1 72+2 
80+0 84+2 88+1 
91+1 95+4 93+2 
Q15. Add the addends and give <, >, = signs as appropriate to solve the addition worksheet
Q16. Solve the following 1stgrade addition worksheet word problems
 Twelve students go for an excursion by minibus. There is a teacher with the students. The driver is driving the bus and the helper is standing in front of the door. How many are there in the minibus?
 Ranu’s mother told a story from a storybook. The first day she read 27 pages. The second day she read 35 pages. How many pages did she read in all?
 There are 75 storybooks in a library. 20 more comic books were purchased. How many books are there in the library?
 In a basket, there are ten green apples, five red apples, and three kiwis. How many fruits are in a basket?
 Ariyan has four more cookies than his sister. His sister has six cookies. How many cookies does Ariyan have?
 Titli has twelve more colored pencils than her friend. Her friend has ten color pencils. How many color pencils does Titli have?
 Barbie loves to read the General Knowledge book. She has sixteen such books. She got four more. How many General knowledge books did Barbie have in all?
 Maya collected twelve old copper coins. Then she found four more coins in her box. How many copper coins did she have in all?
 Sara had fourteen skirts and eight frocks. She kept all together in the cupboard. How many dresses she has in total?
Q17. Count the number of under the sea animals shown below and write the numeral addition in the right side space
Q18. Choose two numbers from each row that add up to 20. How many pairs are there?
19 1 4 16
7 5 9 11
12 8 10 5
8 12 10 16
Q19. Create Addition problems using the numbers given below to make a sum of 25. Use each number only once.
10 10 5 6
2 4 9 8
13 11 7 14
4 6 8 7
Click here to solve more such 1stgrade math worksheet problems
thanks mam ,these worksheet are very nice for kids
I really love this thanks so much.