Boba Maths

Year 5 · Autumn term · Addition and subtraction · Step 4

Year 5 Rounding to check answers worksheets

Estimate by rounding to check that answers are sensible. 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 Rounding to check answers 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. Rosie rounds each number to the nearest 1,000 to estimate the answer. Then she works out the actual answer.
    4,133 + 8,474. Round each number to the nearest 1,000.
    Estimate: ____
    Actual answer: ____
    Show the answer

    12,000; 12,607

  2. Round each number to the nearest 10,000 to estimate the answers.
    a) 77,025 + 49,785 (nearest 10,000) ≈ ____
    b) 39,550 − 5,403 (nearest 10,000) ≈ ____
    Show the answer

    130,000; 30,000

  3. 7,668 + 516 = 12,828.
    Round each number to the nearest 1,000 to estimate the answer.
    Estimate: ____
    Is Boba’s answer sensible?
    Circle yes or no.
    What is the actual answer? ____
    Show the answer

    9,000; No; 8,184

  4. A cinema ticket costs £4.56, a tub of popcorn costs £3.41 and a drink costs £3.06.
    Mr Smith wants to buy 2 tickets, a tub of popcorn and a drink. He has £20.
    a) Round each price to the nearest pound to estimate the total cost. ____
    b) Does Mr Smith have enough money? Circle yes or no.
    Circle yes or no.
    Show the answer

    £16; Yes

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 Addition and subtraction

All Addition and subtraction steps · Year 5 overview