FreeMathWorksheet
FreeMathWorksheet

Classwork Worksheet

TN-MATH-GR10-97274 · v2.9

Rounding Decimals

Grade 10 · Math · Decimals · International Baccalaureate

Grade

Grade 10

Subject

Math

Topic

Decimals

Subtopic

Rounding Decimals

Curriculum

International Baccalaureate

Difficulty

Core

Time

20 minutes

Total marks

44

Student name

Teacher name

Date

Learning objectives

  • Recognise rounding decimals accurately in math contexts.
  • Explain the underlying rule of rounding decimals in the student's own words.
  • Apply rounding decimals to multi-step and unfamiliar problems.
  • Justify a chosen method and identify errors in another student's work.

Skills assessed

  • Fluency and recall
  • Method and setting out
  • Reasoning and justification
  • Problem solving in context
  • Self-assessment

Instructions

  1. Write your name, your teacher's name and the date in the header.
  2. Answer every question in the space provided. Continue on the back if needed.
  3. Show all working — method marks are awarded even when the final answer is wrong.
  4. Aim to finish in about 20 minutes.
  5. Complete the reflection box at the end before you hand the sheet in.

Warm-up

Bloom: Remember · 3 marks

Answer quickly. These check you are ready for the topic.

  1. 1.Circle one fact you already know about rounding decimals.

    [1]
  2. 2.Write down one fact you already know about rounding decimals.

    [1]
  3. 3.Circle one fact you already know about rounding decimals.

    [1]

Recall

Bloom: Remember · 3 marks

Complete from memory. No calculator, no notes.

  1. 1.Complete the key term used in rounding decimals described here: item 1.

    [1]
  2. 2.Complete the key term used in rounding decimals described here: item 2.

    [1]
  3. 3.Label the key term used in rounding decimals described here: item 3.

    [1]

FreeMathWorksheet · TN-MATH-GR10-97274 · v2.9

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 1 of 4

FreeMathWorksheet · Grade 10 Math

Rounding Decimals

Basic Practice

Bloom: Understand · 4 marks

Work through each item. Show the step you used.

  1. 1.Complete part 1 using the rule for rounding decimals.

    [1]
  2. 2.Work out part 2 using the rule for rounding decimals.

    [1]
  3. 3.Complete part 3 using the rule for rounding decimals.

    [1]
  4. 4.Identify part 4 using the rule for rounding decimals.

    [1]

Guided Practice

Bloom: Understand · 6 marks

The first step is given. Finish the reasoning.

  1. 1.Using the first step given, finish part 1. Step 1 has been started for you.

    [2]
  2. 2.Complete the method for part 2. Step 1 has been started for you.

    [2]
  3. 3.Continue the working for part 3. Step 1 has been started for you.

    [2]

FreeMathWorksheet · TN-MATH-GR10-97274 · v2.9

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 2 of 4

FreeMathWorksheet · Grade 10 Math

Rounding Decimals

Independent Practice

Bloom: Apply · 8 marks

No scaffolding. Set out your full method.

  1. 1.Solve part 1 on rounding decimals without help.

    [2]
  2. 2.Solve part 2 on rounding decimals without help.

    [2]
  3. 3.Calculate part 3 on rounding decimals without help.

    [2]
  4. 4.Determine part 4 on rounding decimals without help.

    [2]

Challenge Questions

Bloom: Analyse · 6 marks

Harder items. Attempt every one, even partially.

  1. 1.Find and justify the statement in part 1 about rounding decimals.

    [3]
  2. 2.Find and justify the statement in part 2 about rounding decimals.

    [3]

Real-life Application

Bloom: Apply · 6 marks

Use the skill in context. State units in your answer.

  1. 1.Use the information to decide a real math situation that depends on rounding decimals.

    [3]
  2. 2.Apply a real math situation that depends on rounding decimals.

    [3]

FreeMathWorksheet · TN-MATH-GR10-97274 · v2.9

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 3 of 4

FreeMathWorksheet · Grade 10 Math

Rounding Decimals

Critical Thinking

Bloom: Evaluate · 8 marks

Explain your reasoning in full sentences.

  1. 1.Compare and justify a student's method for rounding decimals is or is not efficient.

    [4]
  2. 2.Explain why a student's method for rounding decimals is or is not efficient.

    [4]

Reflection

Bloom: Create · 0 marks

Not marked. Answer honestly — this guides your next worksheet.

  1. 1.Reflect on how confident you feel with rounding decimals and what you will practise next.

    [—]
  2. 2.Describe how confident you feel with rounding decimals and what you will practise next.

    [—]

FreeMathWorksheet · TN-MATH-GR10-97274 · v2.9

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 4 of 4