# Decimals articles

What is a function machine?
Function machines are versatile tools in the teaching of mathematics, helping children understand and explore a wide range of mathematical concepts in a fun and engaging way. From basic operations in Key Stage 1 to more complex functions in Upper Key Stage 2, function machines can help play a crucial role in developing children's mathematical understanding and skills.

Best decimals apps for kids
Help your child learn about decimals and how to use them and calculate with them with these brilliant learning apps.
Primary numeracy glossary for parents
From area to word problems, TheSchoolRun's primary-school numeracy glossary offers a complete guide to all the maths concepts children are taught in EYFS, KS1 and KS2. Brush up on your own mathematical skills, clear up homework confusion and understand exactly what your child is learning at school by reading our basic definitions (with links to more detailed explanations, teachers' tips and examples).
What are two-step and multi-step problems?
We explain what two-step and multi-step problems are and give examples of typical problems a child might be asked to solve in primary school (and how the answer can be worked out!).
What are decimals?
We explain what decimals are and how the concept is explained to primary-school children, as well as how they are taught to relate decimals to money and measurement, the equivalence between fractions and decimals, partitioning, rounding and ordering decimals and adding, subtracting, multiplying and dividing decimals.
Teachers' tricks for decimals
Understanding decimals is vital for real-life, everyday maths. Phoebe Doyle offers some teacher tips to help your Key Stage 2 child understand what decimals are and how to use this knowledge in calculations.
What is place value?
A good understanding of place value (the value of each digit in a number) is vital in primary-school maths. Our parents' guide explains how your child will be taught about units, tens, hundreds and thousands with number lines, arrow cards and more, as well as outlining how place value is used to help children visualise calculations.