The four button has dropped off!
How can you do these calculations using this calculator?
Topics: Starter  Arithmetic  Calculator  Mixed  Problem Solving
How did you use this starter? Can you suggest
how teachers could present or develop this resource? Do you have any comments? It is always useful to receive
feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
Click here to enter your comments.
If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:
This starter has scored a mean of 3.1 out of 5 based on 111 votes.
Previous Day  This starter is for 2 June  Next Day
There are many different ways of performing the calculations with this broken calculator. Here are some examples.
1. 59994 + 8003 = 59995 + 8002
2. 559  254 = 558  253
3. 255 x 34 = 255 x 33 + 255
4. 25% of 540 = 50% of 270 = 270 / 2
5. ^{1}/_{7} + ^{1}/_{4} = 1 ÷ 7 + 0.25
6. 0.14 x 23.44 = 0.28 x 11.72
7. 244^{4} = 122 x 122 x 122 x 122 x 16
Teacher, do your students have
access to computers? 

Here is the URL for a concise version of this page without comments or answers.
Here is the URL which will take them to a related student activity.