teaching resource

Diving Into Decimals Interactive Game

  • Updated

    Updated:  28 Sep 2023

Use this interactive activity to take a deep dive into decimals while improving skills with decimal operations and place value concepts.

  • Editable

    Editable:  PowerPoint, Google Slides

  • Pages

    Pages:  1 Page

  • Curriculum
  • Years

    Years:  5 - 7

Curriculum

  • VC2M5N01

    Interpret, compare and order numbers with more than 2 decimal places, including numbers greater than one, using place value understanding; represent these on a number line <ul> <li>making models of decimals including tenths, hundredths and thousandths by subdividing materials or grids, and explaining the multiplicative relationship between consecutive places; for example, explaining that thousandths are 10 times smaller than hundredths, or writing numbers into a place value chart to compare and order them</li> <li>renaming decimals to assist with mental computation; for example, when asked to solve 0.6 ÷ 10 they rename 6 tenths as 60 hundredths and say, ‘If I divide 60 hundredths by 10, I get 6 hundredths’ and write 0.6 ÷ 10 = 0.06</li> <li>using a number line or number track to represent and locate decimals with varying numbers of decimal places and numbers greater than one and justifying the placement; for example, 2.335 is halfway between 2.33 and 2.34, that is, 2.33 < 2.335 < 2.34, and 5.283 is between 5.28 and 5.29 but closer to 5.28</li> <li>interpreting and comparing the digits in decimal measures, for example, the length or mass of animals or plants, such as a baby echidna weighing 1.78 kilograms and a platypus weighing 1.708 kilograms</li> <li>interpreting plans or diagrams showing length measures as decimals, placing the numbers into a decimal place value chart to connect the digits to their value</li> </ul>

  • VC2M6N04

    Apply knowledge of place value to add and subtract decimals, using digital tools where appropriate; use estimation and rounding to check the reasonableness of answers <ul> <li>applying estimation strategies to addition and subtraction of decimals to at least thousandths before calculating answers or when a situation requires just an estimation</li> <li>applying whole-number strategies; for example, using basic facts, place value, partitioning and the inverse relationship between addition and subtraction, and properties of operations to develop meaningful mental strategies for addition and subtraction of decimal numbers to at least hundredths</li> <li>working additively with linear measurements expressed as decimals up to 2 and 3 decimal places; for example, calculating how far off the world record the athletes were at the last Olympic Games in the women’s long jump or shot-put and comparing school records to the Olympic records</li> <li>deciding to use a calculator as a calculation strategy for solving additive problems involving decimals that vary in their number of decimal places beyond hundredths; for example, 1.0 − 0.0035 or 2.345 + 1.4999</li> </ul>

  • VC2M6N06

    Multiply and divide decimals by multiples of powers of 10 without a calculator, applying knowledge of place value and proficiency with multiplication facts, using estimation and rounding to check the reasonableness of answers <ul> <li>applying place value knowledge, including that the value of the digit is 10 times smaller each time a place is moved to the right, and known multiplication facts, to multiply and divide a decimal by powers of 10</li> <li>applying and explaining estimation strategies in multiplicative situations involving a decimal greater than one that is multiplied by a two- or three-digit number, using a multiple of 10 or 100 when the situation requires just an estimation</li> <li>explaining the effect of multiplying or dividing a decimal by 10, 100, 1000 … in terms of place value and not the decimal point shifting</li> </ul>

teaching resource

Diving Into Decimals Interactive Game

  • Updated

    Updated:  28 Sep 2023

Use this interactive activity to take a deep dive into decimals while improving skills with decimal operations and place value concepts.

  • Editable

    Editable:  PowerPoint, Google Slides

  • Pages

    Pages:  1 Page

  • Curriculum
  • Years

    Years:  5 - 7

Use this interactive activity to take a deep dive into decimals while improving skills with decimal operations and place value concepts.

Decimal Place Value

Place value is a topic that students learn from a very early age. They begin to understand the difference between hundreds, tens and ones and extend this understanding to larger numbers. Students gradually to recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left. 

If you are in need of a fun and interactive activity for your students to practice these skills, have no fear! Teach Starter has put together a collection of activities for your students to practice decimal place value skills. This interactive activity will practice place value skills which include:

  • Determining 1/10, 1/100, 10 times and 100 times a numbers
  • Build numbers with place value riddles
  • Add, subtract, multiply and divide with decimals
  • Match decimals written in word form, standard form and expanded form
  • And more!

This activity aims to practice place value through the thousandths place, operations involving decimals and problem-solving using place value relationships.

Tips for Differentiation + Scaffolding 

A team of dedicated, experienced educators created this resource to support your maths lessons.

In addition to individual student work time, use this activity to enhance learning through guided maths groups, whole class lessons, or remote learning assignments. 

If you have a mixture of above and below-level learners, we have a few suggestions for keeping students on track with these concepts: 

🆘 Support Struggling Students

For students who need additional support, allow for the use of a place value chart as a reference tool. Students can work one-on-one with the teacher or with a peer tutor.

➕ Challenge Fast Finishers

For students needing a challenge, edit the numbers to make them more complex and/or larger. Extend the learning after the slides by having students write true and false sentences about various numbers, help classmates with their work, or create their own tutorials about decimal place value.

🧑‍🏫 Group Learning

Project the slides onto a screen and work through them as a class by having students record their answers in their notebooks or mini whiteboards. 

Easily Prepare This Resource for Your Students

Use the Download button to access this resource’s interactive Google Slides version. An answer key is also included for easy grading! 

Assign this interactive activity in Google Classroom. Please be sure to open in Edit mode, not presentation mode. Students will drag and drop, use the paint bucket tool, and type in responses to complete the activities.


This resource was created by Lorin Davies, a Teach Starter Collaborator. 

While you’re here, check out more activities and teaching resources that fill your lesson plans and students’ brains:

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