The best, free Interactive Whiteboard Resources

Regularly updated to save you time!

Addition and Subtraction

Spinners Flash

A versatile way of generating random numbers which is excellent for use right through the primary school. Spin the numbers and choose the required calculation. Great for starter and plenary sessions. It also provides the answers to the calculations.

Inverse Machines Flash

This IWB teaching resource has a simple function machine but with the difference that the numbers can be reversed. This is useful for teaching one more, ten more and addition and subtraction.

Count on me! Flash

Activities to help children learn their number bonds to 10. There is a pairs game with number and picture prompts and problem solving using the number facts to 10.

Number Bond Machines Flash

Use these machines to practise the mental skills of number bonding. See which numbers make 5, 10 and 100 when they are added together.

Triangular Cards Flash

A clever resource which is great for demonstrating inverse operations. Click on the words to see the sums. Useful for mental maths starters or plenaries.

Great Day for Number Lines Flash

A good tool for demonstrating addition to 10 on a numberline. There are two levels of difficulty.

Addition of 2 and 3 Digit Numbers Flash

A useful teacher demonstration tool for demonstrating how units or tens are regrouped in addition sums with carrying.

100 Hunt Plus 10 Flash

A simple game where you need to add 10 to on a hundred square. It is best displayed on full screen.

Park the Pods Flash

Good number square activities involving counting on and counting back. There are different levels including adding tens and units.

Cross the Swamp Flash

Children will love monkey character in this game which has addition, subtraction, multiplication and division sums at 3 different levels.

Bingo - Addition Flash

Excellent for whole class addition mental maths. Levels are progressive from single digit addition to decimal addition and HTU and TU addition. It usefully presents sums in different ways.

Dartboard Addition Flash

Use the image of a dartboard to reinforce addition. You can choose to reveal or input the answers.

Horizontal Addition Using Place Value Cards Flash

A good demonstration tool for showing how TU and HTU mental addition can be made easier through the use of place value cards.

Save the Whale Flash

Complete the number bonds to set the whale free. You can choose different totals up to 10.

Simple Take Away Flash

A beautifully illustrated animated site which can help children learn subtraction within 5 or 10. There is a facility for making your own subtraction sums within 10.

Function Machine Tablet friendly

The single step function machine adds or subtracts numbers to 10 or you can set your own function.

Subtraction on a Number Line Flash

A great tool for teaching finding the difference between two numbers. Useful for showing counting on for single digit subtraction and bridging tens.

Counting on in ones Flash

Counting on in ones demonstrates simple addition by counting on. This site is very versatile because there different levels of difficulty beginning with young children seeing how objects are added by counting on.

Calendar Investigation Flash

An addition investigation where you need to find diagonal totals on a calendar to match a target number.

Number Rack Tablet friendly

A fantastic abacus type resource of moveable, coloured beads that encourage learners to think in groups of fives and tens. It can help children to explore a variety of addition and subtraction strategies. Great IWB teaching tool.