3 + 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.
3 + 10 = 

5 + 3 = 

7 + 9 = 

9 + 5 = 

11 + 9 = 

11  2 = 

10  4 = 

9  6 = 

17  8 = 

21  10 = 
6 + 6  1 = 

2 + 1 + 5 = 

3  1  2 = 

1 + 1  2 = 

4  3 + 4 = 

10  6 + 8 = 

9 + 6  10 = 

6 + 8 + 8 = 

7  6 + 6 = 

11  10 + 10 = 
1. There were 2 books in the library of my house. For my birthday, I received 3 books.
How many books do I have now?
a) 1 book.
b) 6 books.
c) 5 books.
2. Jesus has 4 trading cards and Juan José has 6.
How many trading cards are there altogether?
a) 10 cards.
b) 7 cards.
c) 2 cards.
3. I have 9 candies in my closet and I give 7 to my friends.
How many candies do I have now?
a) 16 candies.
b) 8 candies.
c) 2 candies.
4. Guadalupe has a collection of stamps. First, she bought 10 stamps in a store and then she bought 11 in another store.
How many stamps does she have altogether?
a) 21 stamps.
b) 15 stamps.
c) 1 stamp.
5. There are 6 people in a movie theater. 6 more people come in and then 3 people come out.
How many people are left in the movie theater?
a) 15 personas.
b) 12 personas.
c) 9 personas.
6. There are 5 children in the movie theater. 3 of them come out and then 6 children come in.
How many children are there in the movie theater finally?
a) 14 children.
b) 8 children.
c) 7 children.
7. Luis has 5 marbles, Ricardo has 6 and Rafael has also 6.
How many marbles are there altogether?
a) 12 marbles.
b) 17 marbles.
c) 11 marbles.
8. In a circus, there were 9 elephants, 8 Tigers and 6 monkeys.
How many animals were there in the circus?
a) 17 animals.
b) 14 animals.
c) 23 animals.
9. Andrés had 7 euros and his father gave him 11. He bought a book that cost 11 euros.
How much money does he have left?
a) 29 Euros.
b) 7 Euros.
c) 8 Euros.
10. 6 passengers traveled in a commercial plane. At the airport 8 people went aboard and 5 went down.
How many people are there on the plane?
a) 8 passengers.
b) 9 passengers.
c) 19 passengers.
 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