Write an Equation with a Letter is a free printable Grade 4 math worksheet on turning a two-step story into one equation with n for the unknown, aligned to Common Core standard 4.OA.A.3. 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.
1.Ama buys 8 packs of erasers with 10 in each and gives 19 to Kofi. Write an equation with n for how many are left, then solve it.
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2.Noor buys 7 packs of shells with 9 in each and gives 16 to Freya. Write an equation with n for how many are left, then solve it.
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3.Noor buys 9 packs of erasers with 7 in each and finds 9 more. Write an equation with n for the total, then solve it.
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4.Dilan buys 8 packs of cards with 9 in each and gives 5 to Ama. Write an equation with n for how many are left, then solve it.
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5.Mei buys 9 packs of erasers with 15 in each and gives 15 to Aisha. Write an equation with n for how many are left, then solve it.
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6.Ravi buys 3 packs of cards with 14 in each and gives 9 to Kofi. Write an equation with n for how many are left, then solve it.
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LessonPrint · 4.OA.A.3 · Set 1 · free to copy for classroom use
Answer key — Write an Equation with a Letter
Set 1. Prints on its own sheet.
1.n = 8 × 10 − 19; n = 61
2.n = 7 × 9 − 16; n = 47
3.n = 9 × 7 + 9; n = 72
4.n = 8 × 9 − 5; n = 67
5.n = 9 × 15 − 15; n = 120
6.n = 3 × 14 − 9; n = 33
Questions about Write an Equation with a Letter
What does the Write an Equation with a Letter worksheet cover?
It practices turning a two-step story into one equation with n for the unknown — 6 questions for Grade 4, all on Common Core 4.OA.A.3: Solve story problems that take several steps. The instruction to students is “Write an equation using n, then solve it”, and the answer key follows on the next sheet.
Which Common Core standard does Write an Equation with a Letter practice?
CCSS.MATH.CONTENT.4.OA.A.3 — 4.OA.A.3, under Operations & Algebraic Thinking for Grade 4. The published standard reads: “Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations.” The worksheet assesses that standard rather than a paraphrase of it.
What age or grade is this worksheet for?
Write an Equation with a Letter is written for Grade 4, typically ages 9-10. It is one of the sheets on 4.OA.A.3, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.
Does Write an Equation with a Letter 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 Write an Equation with a Letter 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 Write an Equation with a Letter free to print and photocopy?
Yes. Write an Equation with a Letter, 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.