Here is another video we have been using, to show the children a range of subtraction strategies. We have explored lots of different methods to subtract and discovered our personal favourite.
Some of us prefer to jump back along a number line, in tens and ones. For others, we prefer to partition the two digit number and take away the tens first and then take away the ones, in number sentences.
Which method will you use? Why do you prefer that strategy? How could you explain it in a different way?