Area by Multiplying
3.MD.C.7
NameDate
Work out the area.
1.
Sides 11 and 11. Area =
2.
Sides 9 and 9. Area =
3.
Sides 10 and 10. Area =
4.
Sides 5 and 5. Area =
5.
Sides 4 and 4. Area =
LessonPrint · 3.MD.C.7 · Set 1 · free to copy for classroom use
Area by Multiplying is a free printable Grade 3 maths worksheet on using the side lengths rather than counting, aligned to Common Core standard 3.MD.C.7. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
Answer key — Area by Multiplying
Set 1. Prints on its own sheet.
- 1.121 square units
- 2.81 square units
- 3.100 square units
- 4.25 square units
- 5.16 square units
Questions about Area by Multiplying
What does the Area by Multiplying worksheet cover?
It practises using the side lengths rather than counting — 5 questions for Grade 3, all on Common Core 3.MD.C.7: Find area by multiplying side lengths. The instruction to pupils is “Work out the area”, and the answer key follows on the next sheet.
Which Common Core standard does Area by Multiplying practise?
CCSS.MATH.CONTENT.3.MD.C.7 — 3.MD.C.7, in the Measurement & Data domain for Grade 3. The published standard reads: “Relate area to the operations of multiplication and addition.” The worksheet assesses that standard rather than a paraphrase of it.
What age or grade is this worksheet for?
Area by Multiplying is written for Grade 3, typically ages 8-9. It is one of the sheets on 3.MD.C.7, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.
Does Area by Multiplying come with an answer key?
Yes. All 5 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 Area by Multiplying can I print?
25 — one per pupil, 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 Area by Multiplying free to print and photocopy?
Yes. Area by Multiplying, 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.
Is there a lesson plan to teach 3.MD.C.7?
Yes — “Area by Multiplying Side Lengths” is a 45-minute Grade 3 plan for 3.MD.C.7, timed section by section, with the misconceptions to expect and an exit ticket. Area by Multiplying is the practice that follows it.
More practice for 3.MD.C.7
Find area by multiplying side lengths.
Teaching this next? Area by Multiplying Side Lengths is the 45-minute plan for it, with the misconceptions to expect.
Last reviewed 2026-09-05. Aligned to 3.MD.C.7 of the Common Core State Standards for mathematics.