Addition and Subtraction Facts
This is a brilliant animated resource for demonstrating addition and subtraction facts to 20. Super for number bonds and missing numbers.
Bee Hive - More and Less
In this game you need to identify one more and one less in numbers up to 10 or 20.
Rekenrek
This digital teaching tool has both a 20 and 100 Rekenrek. It is useful teaching tool for an interactive whiteboard.
Number Compare
Compare numbers and quantities up to 20, using a strategy such as grouping, subitizing, counting, or a number line. Useful for learning 'greater than', 'less than' and 'equals' terms.
Minus Mission
Quick fire subtraction sums against the clock. This is a space invader type game with subtraction sums less than 20. Just the thing to sharpen your mental maths skills.
Crystal Crash
An addictive find fractions of numbers game where you throw the pickaxe at the correct answer. Different levels including find half of up to 20, 40 or 100, find unit fractions of number, or multiples of 1/10 of numbers. Super homework activity.
Ten Frame Modeller
The Ten Frame Modeller is a useful teaching tool to help children visualise numbers within 10 and also 20. It can be used for counting, addition, subtraction and missing number problems.
Number Play
Number Play introduces the concept of counting, cardinality, comparing values, and subitizing numbers up to 20. It explores ten frames. Students can explore the features first and then try the game to test their understanding.
Num Tanga Junior
Match the pairs which could be numerals, numbers as words, ten frames, base ten or fingers on hands. There are different levels the highest of which goes up to 20.
Alien Addition
A quick fire space invader type addition game. It is quite a challenge but will help you learn your number bonds to 20. Great for improving your mental maths skills.
