Which of the coloured stencils will fit over the numbered card to produce correct calculations?
Teacher: The stencils can be dragged over the numbered card once the students have had a guess.
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Topics: Starter  Arithmetic  Problem Solving
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Extension question: If all three stencils are placed over the numbered card at the same time, which digits can still be seen?
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Teacher, do your students have
access to computers? 

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