Additive and Multiplicative Structure of Place Value. . This is a little gem! We often think that our students are ready to move on to ‘bigger’ numbers but we need to spend time consolidating and building a robust understanding of place value. . Give this one a go and see how confident your students are. Then follow it up with our unitise and rename lesson! . Why? Students are often helped to see that 3-digit numbers consist of a number of Hundreds, Tens and Ones. To develop more flexible thinki