Boba Maths

Year 5 · Spring term · Perimeter and area · Step 2

Year 5 Perimeter of rectilinear shapes worksheets

Find missing sides and the perimeter of shapes made from rectangles. A free editable Word sheet with eight fluency and six reasoning questions. The answers follow the questions: the same sheet again with every answer in red.

Download the worksheets

Print on A4 portrait: every page carries the sheet twice, side by side, so you can cut down the middle and two pupils each get a half to stick in their books. Every question sits in its own box and pupils write their answers in their book. The answers follow the questions in the file: the same sheet again with every answer in red. It opens in Word, Google Docs, Pages and LibreOffice, so you can change numbers, delete questions or add your own. There is no scaffolded version of this step yet.

Not scaffolded sheet

First page of the not scaffolded Perimeter of rectilinear shapes sheet, printed twice side by side

The same questions without the extra support. For pupils working at the expected standard: eight fluency questions first, then the reasoning questions.

Answer in your book (.docx)

Sample questions from this step

These are real questions from the first set of the sheet (two from the fluency page, two from the reasoning page). Open each one to see the answer.

  1. Work out the perimeter of the shape.
    9 cm4 cm6 cm2 cm3 cm6 cm
    Perimeter = ____ cm.
    Show the answer

    30

  2. Work out the missing lengths.
    11 cma8 cm4 cmb10 cm
    a = ____ cm.
    b = ____ cm.
    Show the answer

    6; 3

  3. Nina: The perimeter of this shape is the same as the perimeter of the rectangle drawn round it.
    9 cm7 cm2 cm2 cm5 cm2 cm2 cm7 cm
    Is Nina correct? Circle yes or no.
    Circle yes or no.
    Explain how you know.
    Show the answer

    No; No. The shape has a perimeter of 36 cm. The rectangle round it has a perimeter of 32 cm. The notch adds extra length, so the shape's perimeter is greater.

  4. Three rectangles are each 12 cm long and 5 cm wide. They are joined edge to edge to make shape A and shape B.
    A
    B
    Perimeter of shape A = ____ cm.
    Perimeter of shape B = ____ cm.
    Greater perimeter: shape ____
    Show the answer

    82; 68; A

What is on each sheet

  • Fluency: eight questions that start easy and get harder, with the key skill of the step practised in different ways.
  • Reasoning: questions with pictures, tables and number lines (spot the mistake, true or false and explain, puzzles with one answer, an open-ended task).
  • Answers in the same file: the sheet again with every answer in red, so there is only one file to download.
  • Boba characters give the instructions in speech bubbles. They are decoration only.

Why one set of questions?

More in Perimeter and area

All Perimeter and area steps · Year 5 overview