adding and subtracting within 20

1. What is 5+3 = ?

• 10

• 8

• 9

• 11

2. Tom has 12 pencils, sarah gives him 4 more. How many pencils does tom have now?

• 19

• 15

• 10

• 16

3. Ther are 15 crayons in a box if 3 are taken away, how many remain?

• 12

• 9

• 16

• 18

4. What is 10-2 = ?

• 7

• 8

• 6

• 5

5. What is 20-5 = ?

• 15

• 12

• 14

• 18

6. You have 12 marbles, your friend takes away 2. How many marbles do you have left?

• 9

• 10

• 11

• 12

7. What is 16+2 = ?

• 15

• 16

• 17

• 18

8. What is 5+6 = ?

• 8

• 9

• 10

• 11

9. A toy box has a 15 blocks if 3 are removed how many blocks remain?

• 12

• 13

• 14

• 15

10. A basket contains 18 apples. If 2 apples are added, how many apples are there now?

• 17

• 18

• 19

• 20