Skip to content
LessonPrint

Write the Number Sentence — Stories to 20 is a free printable Grade 1 math worksheet on writing the number sentence for a story, with the unknown at the start, middle or end, aligned to Common Core standard 1.OA.A.1. It prints 6 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 11 of 25 · the same problems every time you open this link.

Next set

One paper per student

12345678910111213141516171819202122232425

Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Write the Number Sentence — Stories to 20

1.OA.A.1

NameDate

Write a number sentence for each story, then solve it.

1.Tomas has 17 buttons. Tomas gets some more and now has 18. How many more did Tomas get?
Answer:
2.Freya has 2 beads and gives 1 away. How many are left?
Answer:
3.Suki has 19 erasers and gets 1 more. How many does Suki have now?
Answer:
4.Aisha has 17 cards and gets 3 more. How many does Aisha have now?
Answer:
5.Dilan has some cards and gets 13 more. Now Dilan has 15. How many did Dilan have at the start?
Answer:
6.Mei has 8 stamps and gives 6 away. How many are left?
Answer:

LessonPrint · 1.OA.A.1 · Set 11 · free to copy for classroom use

Answer key — Write the Number Sentence — Stories to 20

Set 11. Prints on its own sheet.

  1. 1.17 + 1 = 18
  2. 2.2 − 1 = 1
  3. 3.19 + 1 = 20
  4. 4.17 + 3 = 20
  5. 5.2 + 13 = 15
  6. 6.8 − 6 = 2

Last reviewed 2026-09-05. Aligned to 1.OA.A.1 of the Common Core State Standards for Mathematics.