Adding Doubles Plus 1 (Worksheet 3) – Elementary Mathematics
Name: _______________________________ Score:________________
Worksheet 3
Adding doubles plus 1
Add doubles plus 1 to find each sum.
Example:
3+4= 3+3+1= 6+1= 7
1. 4+5= _____ 11. 5+6= _____
2. 6+7= _____ 12. 2+3= _____
3. 8+9= _____ 13. 4+5= _____
4. 7+8= _____ 14. 8+9= _____
5. 1+2= _____ 15. 5+6= _____
6. 5+6= _____ 16. 7+8= _____
7. 2+3= _____ 17. 3+4= _____
8. 7+8= _____ 18. 2+3= _____
9. 8+9= _____ 19. 5+6= _____
10. 6+7= _____ 20. 8+9= _____
Note: If your score is 16 and above, answer Worksheet 4, right away.
If your score is 15 and below, answer Worksheet 3.1.
Name: ____________________________ Score:_________
Worksheet 3.1
Adding doubles plus 1
Add doubles plus 1 to find each sum.
1. 8+9= _____ 11. 1+2= _____
2. 2+3= _____ 12. 4+5= _____
3. 4+5= _____ 13. 7+8= _____
4. 8+9= _____ 14. 2+3= _____
5. 3+4= _____ 15. 7+8= _____
6. 6+7= _____ 16. 8+9= _____
7. 1+2= _____ 17. 4+5= _____
8. 5+6= _____ 18. 7+8= _____
9. 6+7= _____ 19. 3+4= _____
10. 8+9= _____ 20. 2+3= _____
Note: If your score is 16 and above, answer Worksheet 4, right away.
If your score is 15 and below, answer Worksheet 3.2.
Name: ____________________________ Score:________
Worksheet 3.2
Adding doubles plus 1
Add doubles plus 1 to find each sum.
1. 7+8= _____ 11. 8+9= _____
2. 8+9= _____ 12. 3+4= _____
3. 4+5= _____ 13. 7+8= _____
4. 2+3= _____ 14. 1+2= _____
5. 3+4= _____ 15. 6+7= _____
6. 6+7= _____ 16. 8+9= _____
7. 2+3= _____ 17. 4+5= _____
8. 5+6= _____ 18. 6+7= _____
9. 1+2= _____ 19. 4+5= _____
10. 4+5= _____ 20. 3+4= _____
You may now answer Worksheet 4, Adding doubles minus 1.
