Rows of Ten
2.OA.C.4
NameDate
Work out each answer.
1.5 × 10 =
2.4 × 10 =
3.1 × 10 =
4.10 × 10 =
5.6 × 10 =
6.3 × 10 =
LessonPrint · 2.OA.C.4 · Set 1 · free to copy for classroom use
Rows of Ten is a free printable Grade 2 math worksheet on groups of ten as repeated addition, aligned to Common Core standard 2.OA.C.4. 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 1 of 25 · the same problems every time you open this link.
Next setAnswer key — Rows of Ten
Set 1. Prints on its own sheet.
- 1.50
- 2.40
- 3.10
- 4.100
- 5.60
- 6.30
Questions about Rows of Ten
What does the Rows of Ten worksheet cover?
It practices groups of ten as repeated addition — 6 questions for Grade 2, all on Common Core 2.OA.C.4: Add equal rows to find a total — the first step toward multiplication. The instruction to students is “Work out each answer”, and the answer key follows on the next sheet.
Which Common Core standard does Rows of Ten practice?
CCSS.MATH.CONTENT.2.OA.C.4 — 2.OA.C.4, under Operations & Algebraic Thinking for Grade 2. The published standard reads: “Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.” The worksheet assesses that standard rather than a paraphrase of it.
What age or grade is this worksheet for?
Rows of Ten is written for Grade 2, typically ages 7-8. It is one of the sheets on 2.OA.C.4, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.
Does Rows of Ten come with an answer key?
Yes. All 6 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.
How many different versions of Rows of Ten can I print?
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.
Is Rows of Ten free to print and photocopy?
Yes. Rows of Ten, 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.
More practice for 2.OA.C.4
Add equal rows to find a total — the first step toward multiplication.
Last reviewed 2026-09-05. Aligned to 2.OA.C.4 of the Common Core State Standards for Mathematics.