Best decimals apps for kids

Best for explaining decimals concepts

Decimals Mathematics, £2.99, Apple

Decimals can be a tricky concept to explain, but this app manages to put it into plain English, with both spoken and written explanations to help your child learn how decimals work.

It covers five key decimals learning areas: what a decimal is, place value, adding, subtracting, multiplying and dividing, recurring decimals and rounding decimals.

Each topic has a series of lessons to explain the concept to your child, with a quiz at the end to test their new-found knowledge.

Best for step-by-step learning

Decimals and Fractions, £4.99, Apple

Some apps require your child to have an existing knowledge of what decimals are and how they work. Decimals and Fractions is different in that it teaches your child about decimals, starting with the basics and progressing as their knowledge grows.

Set out like a digital exercise book, the app has tutorials with simple step-by-step instructions and clearly explained tasks. It begins by teaching your child how we create decimals and how they fit onto a number line, and moves on to show them how to add and subtract them and how they relate to fractions.

There are 32 different lessons (which your child can repeat as many times as they like), and five tests, so you can track their progress and identify areas where they might need more practice.

Best for supporting the National Curriculum

Fractions Decimals Percentages, £2.99, Apple and Android

This app, developed to align to the National Curriculum, scores points for its clear illustrations and plain English instructions, which make it easy and intuitive for kids to use.

It covers a variety of decimals topics including adding and subtracting decimals, decimals in measurements and converting between fractions and decimals. Each key skill has a number of quizzes to tackle, using learning aids that will be familiar to children, including Multilink-style cubes, marbles and fruit. There are also word problems to solve: an important skill for primary school kids.

There’s a comprehensive progress chart to show what your child has achieved and where they need to practise, and the more levels they complete, the more they unlock. The app also gives a good grounding in fractions and percentages.

Best for practising equivalents

Math Tappers: Equivalents, free, Apple

A key maths skill for children in KS2 is mastering equivalents: that is, knowing that 50% is the same as 0.5 and 5/10. This simple but effective app, devised by maths educators, is a good way to help them practise.

Your child is presented with a series of tiles showing decimals, percentages and fractions, and has to sort them into matching groups to clear the board. They’re given a number line, 100 grid or pie chart to help them work out their answers. At the end of each round, the app tells them how many problems they got right and their time, so they can try to beat their previous scores.

The app has three levels of difficulty to challenge your child as they progress, and a useful parents’ section with a clear and comprehensive guide to the maths concepts in the game.

Best for calculating with decimals

Kids Maths Grids – Decimals, £1.99, Apple

Year 6 SATs require children to be able to solve calculations using decimals. Kids Maths Grids – Decimals will give your child essential practice in adding, subtracting, multiplying and dividing decimals.

Your child is given a grid with different decimal numbers along the top and down the left-hand side. The app then highlights a box, and your child has to solve the problem using the given numbers and type it into the box until all the cells are filled. Each round is timed so your child can try to improve on their personal best.

You can choose whether to focus on addition, subtraction, multiplication or division, and between three levels of difficulty. There’s also the option to print out grids or to print out the problems as simple calculations so your child can practise with pencil and paper.

Best for understanding how fractions and decimals relate

Fractions and Decimals, 99p, Apple

Understanding the relationship between fractions and decimals is an essential primary school maths skill. Fractions and Decimals gives your child lots of opportunities to practise working with fractions and decimals, together and separately.

The ordering activities involve your child putting a selection of decimals into ascending order, helping them get to grips with how decimals work. There are also matching tasks, where your child has to choose the decimal that is equal to the given fraction, or match pairs of decimals and fractions to clear the board.

One small snag is that in this app, decimals of less than 1 are written without the 0 (so .5 rather than 0.5): be sure to remind your child that when they’re working with decimals at school, the 0 must be included.

Best for a challenge

Number Line 2, £1.99, Apple

This fiendishly difficult game involves dragging a selection of fractions and decimals into the right places on a number line. It might sound simple, but with complicated numbers like 13/7 and 0.79, it’s a real test of your child’s understanding of decimals and what they mean.

Your child plays against the clock, with points added for every correct placement on the number line, and deducted for every number they put in the wrong place. They can then compare their scores with others around the world.

With multiple levels of difficulty and the option of playing with just fractions and decimals, or fractions, decimals and percentages, this is a great app for developing the kind of quick thinking that kids need if they’re sitting the 11+.

Best for practising workings

EG Classroom Decimals, £2.99, Apple and Android

If you’re looking for an app that will help your child practise a whole range of decimals problem, this is a great place to start.

Through a series of quizzes, your child can test their knowledge of adding, subtracting, multiplying and dividing decimals, inequalities, converting decimals to percentages, and place value. You can choose how many problems to challenge your child with, from five to 30. There’s also a handy notepad feature for their workings.

The app adjusts itself to the right level of difficulty, based on your child’s previous results, or they can choose a level for themselves to keep them challenged and engaged.

Best for quick-fire practice

Learn It Flashcards – Introduction to Decimals, 99p, Apple

If your child has been working on decimals for a while, this app will test their knowledge with a series of quick-fire questions, displayed flashcard style.

The user-friendly interface has questions on ‘cards’ for your child to solve mentally. They simply tap the card to flip it over and show the answer, and swipe left to move on to the next question.

The problems cover key decimals concepts including decimal place value, writing decimals, estimating the value of decimals, comparing decimals and plotting decimals on a number line. It’s ideal for practising for Year 6 SATs and the 11+, honing your child’s mental maths skills with decimals.

Best for games-based learning

Math Academy – Decimals, £2.99, Apple

Children are always more willing to learn if it’s fun. Math Academy is a games-based app that will give them practice in adding, subtracting and multiplying decimals, while earning rewards.

The aim of the game is for your child to jump their character from a moving platform onto the correct answer to a given problem, such as 17.2 + 23.1, by tapping at the right time. If they get the solution right, they progress to the next question, but if it’s wrong, it’s game over.

With over 100 questions and tricky Challenge levels, the app will help your child hone their mental maths skills with decimals, with the incentive of unlocking new characters as they progress.