Package 1-2 Broken calculator

This activity is designed to get your child to practise and apply their knowledge of numbers and operations. It encourages them to think and problem solve like a mathematician.

Things you need

Have these things available so your child can complete this task.

Ideal

Back up

Read the instructions about how to play the activity.

Why is this activity important?

This activity is designed to get your child to practise and apply their knowledge of numbers and operations. It encourages them to think and problem solve like a mathematician.

Before you start

Make sure your child has the required resources ready.

Check that the video is working and the audio settings are correct for your child.

What your child needs to know and do

For this activity, explain that on a calculator the buttons +, the decimal point, 0, 4 and 3 are broken.

What to do next

View the Broken calculator video.

Complete the task on Activity sheet 1 found below. This activity encourages your child to think about some other ways we can get to a total of 33 on this broken calculator?

Options for your child

Activity too hard?

Encourage your child to watch the video again. They may like another opportunity to think about the mathematical ideas explored in the video.

Activity too easy?

What if the subtraction button was also broken?

What if you could use the decimal point?

Follow-up questions to ask your child

  • What did you find challenging?

    • How did you overcome the challenge?

  • Share your thinking about how you worked around these broken keys.

Extension/additional activity

Write some of your own challenges for your family, classmates or teachers!

This activity was adapted from mathforlove.

Activity sheet 1: Broken calculator

An image of a  calculator with the buttons 4, 3 and the decimal point missing.

What are some other ways we can get to a total of 33 on this broken calculator?


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