16-Let’s Add and Subtract by Breaking Down
The breaking down strategy is a key one for written calculation.
Let’s see how we work on the addition and subtraction of decimals in 5th and 6th year primary school.
These videos are designed for you to use at home to reinforce the strategies that have already been constructed and worked on in the classroom, and, as a result, better accompany the children.
To know where we come from
To see how we start working on this strategy in previous school years, please check out videos 3, 4, 8 and 9.