2 + 10 
Name: ______________________________________ Subject: _______________________ Date: _______
Write on the right side what is missing.
In the combined operations, you must do the first operation with the first two numbers. Then, you must do the second operation with the result and the third number.
2 + 10 = 

4 + 3 = 

6 + 10 = 

8 + 2 = 

10 + 11 = 

12  3 = 

10  5 = 

10  7 = 

11  9 = 

14  11 = 
6  1  4 = 

6 + 3  5 = 

5  1 + 1 = 

1 + 6  3 = 

5 + 4 + 2 = 

10 + 7  7 = 

6 + 6  7 = 

9 + 6 + 6 = 

8 + 7  7 = 

10 + 7  11 = 
Problems
1. One day Juan received 50 cents and another day he received 20 cents.
How much money did he received in the two days?
a) 70 cents.
b) 30 cents.
c) 40 cents.
2. Joseph fished 6 fishes and then he threw 5 of them to the river because they were small.
How many fishes are left?
a) 11 fishes.
b) 1 fish.
c) 4 fishes.
3. My cousin is 7 years old.
How old will he be in 11 years?
a) 18 years.
b) 4 years.
c) 14 years.
4. Miguela collects stamps. One day, she bought 10. If she gives 5 stamps to her friend, Maria Pilar,
How many stamps does she have left?
a) 15 stamps.
b) 5 stamps.
5. There was 6 cookies in a box. First I ate 5 cookies and then 1.
How many cookies are left?
a) 0 cookie.
b) 12 cookies.
c) 11 cookies.
6. Rosa had 5 books on her bookcase. She received 3 in her birthday and she lent 2 to her friends.
How many books does she have now?
a) 10 books.
b) 8 books.
c) 6 books.
7. I had 7 canaries in a cage. I sold 3 canaries and 1of them escaped..
How many canaries do I have now?
a) 3 canaries.
b) 2 canaries.
c) 1 canary.
8. Elena has 10 euros. Her mother gives her 10 and she spent 7 euros on school supplies.
How much money does she have left?
a) 13 Euros.
b) 20 Euros.
c) 7 Euros.
9. A school bus transports 11 children. At the first stop, 8 children get down and then 7 children get in.
How many children are there on the bus now?
a) 9 children.
b) 26 children.
c) 10 children.
10. My mom has spent 9 euros in apples, 11 euros in bananas and 8 euros in oranges.
How much money did she spent?
a) 28 Euros.
b) 19 Euros.
c) 20 Euros.
 Educational
applications 
Calculation 
In Spanish  Interactive
®Arturo Ramo García.Record of intellectual property of Teruel (Spain)
No 141, of 29IX1999
Plaza Playa de Aro, 3, 1º DO 44002TERUEL