Column Use Base 10 to make the bigger Draw the Base 10 or place value counters alongside the number then take the smaller number written calculation to help to show working. This will lead to a clear method away. written column subtraction. without regrouping Show how you partition numbers to subtract. Again make the larger number first. Column Use Base 10 to start with before moving on to place value counters. Start with Draw the counters onto a place value grid and show what method with one exchange before moving onto you have taken away by crossing the counters out as regrouping subtractions with 2 exchanges. well as clearly showing the exchanges you make. Make the larger number with the place value counters Start with the ones, can I take away 8 When confident, children can find their own way to record Children can start their from 4 easily? I need to exchange one the exchange/regrouping. formal written method by of my tens for ten ones. partitioning the number into Just writing the numbers as shown here shows that the clear place value columns. child understands the method and knows when to exchange/regroup. Now I can subtract my ones. Now look at the tens, can I take away 8 tens easily? I need to exchange one hundred for ten tens. Now I can take away eight tens and Moving forward the children complete my subtraction use a more compact method. This will lead to an Show children how the concrete understanding of method links to the written method subtracting any number alongside your working. Cross out the including decimals. numbers when exchanging and show where we write our new amount.
Column method without regrouping Use Base 10 to make the bigger number then take the smaller number away. Show how you partition numbers to subtract. Again make the larger number first. Draw the Base 10 or place value counters alongside the written calculation to help to show working. This will lead to a clear written column subtraction. Column method with regrouping Use Base 10 to start with before moving on to place value counters. Start with one exchange before moving onto subtractions with 2 exchanges. Make the larger number with the place value counters Start with the ones, can I take away 8 from 4 easily? I need to exchange one of my tens for ten ones. Now I can subtract my ones. Now look at the tens, can I take away 8 tens easily? I need to exchange one hundred for ten tens. Now I can take away eight tens and complete my subtraction Show children how the concrete method links to the written method alongside your working. Cross out the numbers when exchanging and show where we write our new amount. Draw the counters onto a place value grid and show what you have taken away by crossing the counters out as well as clearly showing the exchanges you make. When confident, children can find their own way to record the exchange/regrouping. Just writing the numbers as shown here shows that the child understands the method and knows when to exchange/regroup. Children can start their formal written method by partitioning the number into clear place value columns. Moving forward the children use a more compact method. This will lead to an understanding of subtracting any number including decimals.