**Crystal Crash Maths is designed to help teach hundreds of objectives, from Year 1 to Year 6, aligned to the new mathematics curriculum. It includes the following games:**

**Addition **Practise mental addition skills with 20 levels to play from number bonds in Year 1 to adding pairs of decimals in Year 6.

**Subtraction**The game was designed to cover all the mental subtraction objectives in the new maths curriculum. You can choose one objective, or choose all the objectives for a year group.

**Multiplication** Practise multiplication skills aligned to expectations from Year 1 to Year 6. You can choose one multiplication table to practise, or several. Also includes levels which involve recognising square and cube numbers.

**Division** Practise mental division skills with 16 different levels, from halving numbers to 20 (Year 1) to halving decimals and finding division facts related to multiplication tables.

**Reading Numbers** Match numbers written in words with the correct numerals. Multiple levels from numbers smaller than 20 to numbers up to 10,000,000.

**Fractions of Numbers** Find the fraction of a number. Multiple levels to focus on specific objectives, from finding halves of numbers up to 20 to finding multi-part fractions of larger numbers.

**Convert Fractions to Decimals** Find the decimal version of a fraction. Multiple levels to focus on specific objectives from simple unit fractions to multi-part fractions.

**Convert Fractions to Percentages** Find the percentage version of a fraction. Multiple levels to focus on specific objectives from simple unit fractions to multi-part fractions.

**Simplify Fractions** Reduce fractions to their simplest form. Multiple levels to focus on specific objectives from simple unit fractions to multi-part fractions.

**Multiples, Factors, Prime, Square and Cube Numbers** Find multiples and factors of numbers, and recognise prime, squares and cube numbers.

**Rounding Numbers** Levels range from rounding 2-digit numbers to the nearest 10, to rounding decimals with three places to the nearest decimal place.

**Roman Numerals** Recognise Roman Numerals. Levels include: reading numbers up to 12, 50, 100 or 1000, or recognise years written in Roman Numerals.

**Telling the Time in Words** Read the time in words and match to the correct digital time.