Kibo Climb • Grade 1 Sums & Differences to 20
🌟 Free Printable • Grade 1
Climber: Kibo Climber Date: ____________ Score: _____ / 16 Time: _____ min
🧭 Directions: Complete each question carefully. Write your final answer in the blank or box provided.
1.
_ + 1 = 3
2.
3 _ 1 = 2
3.
1 + 8
4.
2 + 6
5.
_, 3, 5, 7
6.
_ + 8 = 9
7.
7 _ 1 = 6
8.
5 + 5
9.
5 − _ = 2
10.
8 + 1
11.
8 + 9
12.
4 _ 6 = 10
13.
7 + _ = 9
14.
8 _ 2 = 10
15.
4, 6, 8, _
16.
_ + 3 = 9
Scan to practice online
Scan to practice online: https://kiboclimb.com/worksheets/math/grade-1-addition-subtraction
Kibo Climb • Offline Skill Practice & Fluency
Page 1 of 2 • Student Worksheet
Parent Answer Key • Grade 1 Sums & Differences to 20
Verified Solutions
💡 Answer Key & Fast Grading Guide: Use this quick key to review solutions with your climber.
1. _ + 1 = 3 2
2. 3 _ 1 = 2 −
3. 1 + 8 9
4. 2 + 6 8
5. _, 3, 5, 7 1
6. _ + 8 = 9 1
7. 7 _ 1 = 6 −
8. 5 + 5 10
9. 5 − _ = 2 3
10. 8 + 1 9
11. 8 + 9 17
12. 4 _ 6 = 10 +
13. 7 + _ = 9 2
14. 8 _ 2 = 10 +
15. 4, 6, 8, _ 10
16. _ + 3 = 9 6
Scan for interactive hints
Digital Answer Guide & Practice: https://kiboclimb.com/worksheets/math/grade-1-addition-subtraction
Kibo Climb • Verified Solutions & Hint Walkthroughs
Page 2 of 2 • Parent Answer Key