Students definitely grasp the lessons easier when their studies are combined with games. These methods are ideal if you find it difficult to add large numbers. Students studying at advanced level may also find these methods helpful and improve their addition skills. These games can also be adapted to most math skills. The games are fun and students forget they are learning.
Children usually start to learn about decimals in Year 4. The first thing children need to know is that a decimal is A PART of a whole. A good way to explain this is to show them an empty hundred number square / chart.