Lesson Four – Subtraction Exchange
This maths teaching pack for Key Stage Two gets the children to model how to use concrete equipment and diagrams to subtract pairs of two and three digit numbers with one exchange between place value.
The class can explain how to change one hundred to ten tens to make it easier to complete one of the steps in a subtraction number calculation.
Download this teaching pack including a lesson plan, classroom activities and an interactive presentation to teach the children to model how to use concrete equipment and diagrams to subtract pairs of two and three digit numbers with one exchange between place value
Activities in this teaching pack include a set of differentiated worksheets to model how to use a formal written method to subtract pairs of two and three digit numbers with one exchange between place value to complete a step in the number calculations.
The interactive presentation gets the children to explore how to use concrete equipment and diagrams to subtract pairs of two and three digit numbers with one exchange between place value.
This lesson is part of a maths scheme of work to get the children to identify and practise using written calculation skills when subtracting pairs of numbers with up to three digits including exchange between place value. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.
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Ordering and Changing
Explore and record how to order three digit numbers by the place value of their digits and how the digits in a number change their numerical values when finding ten and one hundred more or less
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Changing Hundreds
Explore and record the matching number sums that are one hundred more and less than different three digit numbers to show changes to the place values of their numerical digits
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Digit Changes
Identify and record the matching number sums that are ten less than different three digit numbers by illustrating changes to the values of their hundreds, tens and ones digits
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Changing Numbers
Identify and record number sums that are ten more than different three digit numbers using abacus diagrams to model their changing values