Maths – Exploring Subtraction Regrouping With Grade 3/4’s

Subtraction Regrouping

Today 3/4’s we will be looking at subtraction regrouping. We will be using the place value mat and MAB. Lets take a look at the concept using these anchor charts.

sub2    sub3

Let have a go at this one together:

63 – 6 =

What MAB do we need?

How would we set it out on the place value mat?

What would be the first thing we might do?

 

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