Year 2 - Subtracting two digit numbers

Date: 7th Dec 2023 @ 7:30am

This week we have continued our addition and subtraction unit by looking at subtraction two digit numbers. We begun the week by exploring subtraction when it doesn't cross a ten, remembering the importance of starting with the ones. Throughout the week we have further deepened our understanding to subtracting two digit numbers when it does cross a ten exchanging one ten for 10 ones so we can subtract the ones before subtracting the tens. We explored how our whole is the same, it has just been represented in a different way.  For example, 72 can be shown as 7 tens and 2 ones or 6 tens and 12 ones.  We have enjoyed using a range of concrete resources which has helped us with more abstract calculations.