Posts tagged as "add"

Here we continue with our mental arithmetic series on addition by looking at adding 29, 39 and 49 to 2-digit numbers. Make sure that your child is confident with adding 9 before going on to these. Once again the process is the same: add the nearest whole ten and then subtract 1. Once this has [...]

By year 4 children should be comfortable with 2-digit addition ‘in their heads’. This maths worksheet on adding 19 to any 2-digit number will show whether they are confident and quick with their mental methods. There are usually two processes involved when adding 19. It is often best done by adding twenty and subtracting one, [...]