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Student Instructions
Click 
to begin the task.
For slides 1 to 4:
Choose a colour bubble. Use the 
to scratch and find out the hidden equation. Use 
or 
to show me how you solve the equation using column addition.
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For SUPER TRICKY slide 5, scratch as many colour bubbles and see if you can solve them all.
Press 
to show me your amazing work when you are done.
