Grade 1 · Math · On Level
Free Missing Addends Within 20 worksheet - version 5
Find the missing part in addition equations through 20. This printable version includes 12 grade-appropriate questions and a separate answer sheet.
Missing Addends Within 20
Grade 1 · On-level practice · 12 questions · Version PG-1LN9A1K-JDC3
1.__ + 14 = 14
2.__ + 0 = 20
3.__ + 0 = 1
4.__ + 1 = 20
5.__ + 0 = 5
6.__ + 13 = 20
7.__ + 3 = 20
8.__ + 9 = 15
9.__ + 4 = 7
10.__ + 7 = 16
11.__ + 7 = 20
12.__ + 12 = 20
Answers and teaching notes
Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.
Show answers for version 5
- __ + 14 = 140
- __ + 0 = 2020
- __ + 0 = 11
- __ + 1 = 2019
- __ + 0 = 55
- __ + 13 = 207
- __ + 3 = 2017
- __ + 9 = 156
- __ + 4 = 73
- __ + 7 = 169
- __ + 7 = 2013
- __ + 12 = 208
Worked example
__ + 6 = 14. Think 14 - 6, so the missing addend is 8.
Common mistake
Adding the known addend and total together.
Helpful hint
Subtract the known part from the total.