Maths: using place value to add tens

Once again we practised our old way of adding tens. We learned this last term so we know what to do. If we have to add a multiple of 10, cover up the units in both numbers. Then add what you see. Last of all, uncover the units and write them on the end of the number. This is a very easy way of adding numbers that cross a hundred boundary.

At home please do NHM p19. Enjoy doing your homework.