Embed pupils' understanding of adding and subtracting 3-digit numbers by using this Year 3 Add and Subtract 1s Reasoning and Problem Solving activity. Including four reasoning and two problem-solving questions, this resource will allow your class to master their learning!
They will identify digits to complete calculations, spot errors in calculations and identify calculations with the same answer. Number lines are provided to support.
Add and subtract numbers mentally, including: three-digit number and ones; three-digit number and tens; three-digit number and hundreds
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