This is a video modelling how to correctly solve a subtraction problem using the column method.
Can you solve these subtraction problems at home?
352 – 139 = ?
563 – 235 = ?
882 – 428 = ?
We have now moved on to column subtraction. The children noticed that the calculation was organised in exactly the same way as column addition, however, they noted that they needed to remember to include the subtraction symbol and put the biggest number on top. They also discovered that, unlike addition which allows you to add the digits together in any order, when subtracting you must always subtract the bottom number from the top number. With this in mind, the calculations for the subtraction above will look as follows;
6 – 2 = 4
50 – 30 = 20
300 – 200 = 100
This would make the answer 124.
During this lesson, the children became archaeologists who discovered, examined, and recorded their findings of the past. They were set the task of trying to identify what the Romans ate based on stool samples. Through dissecting the samples, they discovered that the Roman’s diet consisted of melons, olives, bread, oranges and lemons. They also found small stones that had accidentally been eaten as a result of the grinding process to make the bread.
They had fun getting mucky and doing some hands on history!
Mr Gill and Miss Gowing hope you are having a fantastic break, please remember to check your Mathletic and Times Table Rockstar accounts over the half – term break.