Subtract Within 1000 — With Regrouping
3.NBT.A.2
Find the mistake and write the right answer.
LessonPrint · 3.NBT.A.2 · Set 1 · free to copy for classroom use
Subtract Within 1000 — With Regrouping is a free printable Grade 3 math worksheet on catching the smaller-from-larger error, aligned to Common Core standard 3.NBT.A.2. It prints 8 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 1 of 25 · the same problems every time you open this link.
Next set3.NBT.A.2
Find the mistake and write the right answer.
LessonPrint · 3.NBT.A.2 · Set 1 · free to copy for classroom use
Set 1. Prints on its own sheet.
It practices catching the smaller-from-larger error — 8 questions for Grade 3, all on Common Core 3.NBT.A.2: Add and subtract within 1000 confidently. The instruction to students is “Find the mistake and write the right answer”, and the answer key follows on the next sheet.
CCSS.MATH.CONTENT.3.NBT.A.2 — 3.NBT.A.2, under Number & Operations in Base Ten for Grade 3. The published standard reads: “Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.” The worksheet assesses that standard rather than a paraphrase of it.
Subtract Within 1000 — With Regrouping is written for Grade 3, typically ages 8-9. It is one of the sheets on 3.NBT.A.2, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.
Yes. All 8 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.
25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.
Yes. Subtract Within 1000 — With Regrouping, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.
Add and subtract within 1000 confidently.
Last reviewed 2026-09-05. Aligned to 3.NBT.A.2 of the Common Core State Standards for Mathematics.