## Vertical HTU + HTU – Mark Weddell

Vertical addition, formal column method- step by step

## Vertical HTU + HTU + HTU – Mark Weddell

Vertical/column/formal method, step by step.

## Addition – Expanded – A Blundred

Column layout expanded addition – interactive, set out in columns, adds it all up at a series of clicks. Choose from TU + TU to ThHTU +ThHTU or two places of decimals Y3 to Y6

## Add It Up – Game Scene

grid of numbers – find succession that add to target number. Timed. Y2/3

## Got It! – NRICH

Adding game – add whole numbers to hit target number to win. 2 Player or play against computer Y1

## Addition test – Ambleweb

Add two numbers mentally. 3 levels of difficulty: U + U including total over 10, up to 29+14, TU + TU including total over 100. Y3/4

## Pyramid – Ambleweb

Addition pyramid – 3 levels of difficulty Y2, Y3, Y4

## Ann & Addem – BBC – Number Time

Achieve the target score on the dartboard. some adding or doubling. 3 levels – higher uses multi-step calculation yr R/1/2

## Splash – Count On

Add small amounts to move your counter up the spout but not off the end. Two player or against the computer. Y1/2

## Number pyramid – adding – Crick

Interactive to explore totals at top when numbers at bottom are changed. Investigative. KS2

## Rock Hopper – eGames

Choose numbers to get the frog over to the rock, adding on the way, to get to the total on the rock Adding single digit numbers Y1/2

## Rock Hopper (Grade 3) – eGames

Choose a path of multiples to reach the target on the rock – single digit multiples Y2/3

## Rock Hopper (Grade 4) – eGames

Choose numbers with pos or neg operators to continuously calculate the way to the large rock, aiming to hit the target number. Y6/7

## Addition Surprise – Harcourt School

drag the number to a correct place on an addition square to complete a picture up to 9 + 9 Yr R/1

## 100 hunt +11 – ICT Games

Add 10 to a given 2 digit number – click the number on the 100 square Y 1/2

## 100 square hunt – +10 – ICT Games

Add 10 to a given 2 digit number Y 1/2

## 5 & a bit Ogre Hit – ICT Games

Partition numbers into fives & left overs to help mental adding Y2

## Beaver Catch 10 – ICT Games

Catch two beavers who add up to 10 Y1/2

## Bridging – ICT Games

mental adding across tens, through to decimals Y2 to y6

## Bridging the gap – ICT Games

Bridging the gap – through 10, 20, 50 & using decimals. Y1/2 to Y6

## Adding 9 Fairy – ICT Games

Add nine by adding 10 then taking away 1. Y1/2

## Flight_for_Fuel – ICT Games

Fly into fuel pods but watch totals & try to fill exactly but not exceed amount allowed. Addition up to 10 Y1/2

## Funny Fingers – ICT Games

Click on the fingers to demonstrate addition up to 5 + 5 Y1

## Monkey Maths – ICT Games

Click on the bananas to complete the sum – single digit numbers YR/1

## Octopus Game – 10 more than – ICT Games

Click & hold on the shell that shows a number 10 more than the given number. Y1/2

## Safe Cracker – ICTGames

Learn & practise single digit addition facts (up to 9 + 9) by turning the tumblers on a safe. Y1/2

## Safecracker + up to 9 + 9 – ICT Games

Learn & practise single digit addition facts by turning the tumblers on a safe. If you get four correct you can enter the safe & play a game. Y 2

## Special Space Jumps – ICT Games

adding single digit numbers by bridging through 10. Jump to the rock & then to the rocket to escape the monster Y1/2

0

## Add 10 submarine Challenge – ICT Games

Adding 10 to a number less then 89. Y1

## submarine Add 10 challenge – ICT Games

2 player game YR/1

## Techno Tortoise – ICT Games

Use a number line to model how to add two 2-digit numbers together by adding the tens digit first. Y3

## +5 Fuel Stop – ICTGames

Know bonds of 5. Add by counting on. Add by using bonds & bridging Y1/2

## +5 Fuel Stop – ICT Games

Addition bridging using bonds of 5 – add five to the number given to fuel the rocket & send it on its way. Y1/2

## Soccer Maths – 2 digit Addition

Add two 2 digit numbers to have the chance to score a goal

## Rocket Maths – Primary Resources

Find three consecutive numbers that add up to target number. Launch the rocket into orbit if successful or crash if not. Y3

## Add Like Mad – Shepherd Software

click number boxes to reach the target number by successive additions – speed test yr 5/6

0

## Subtraction by Counting On – M Weddell

ThHTU-ThHTU. Interactive number line to help counting on steps Y5

## 2 digit difference – Mark Weddell

two 2 digit numbers displayed – find the difference. Crosses tens. 10 secs before answer displayed. Y3

## How many to get to 100 – Mark Weddell

Step by step subtraction by counting on using a number line Y4

## Bowling – Count Us In

In a bowling game, work out how many pins will be left standing. Simple subtraction Y1

## Subtraction test – Ambleweb

3 levels of difficulty. units only, TU-U, including crossing tens, TU-TU including crossing tens. Y1/3

## Digit menu – Crick

Subtraction to 20, to 100, 1 or 2 digits Y2/3

## 100 Square Hunt – Minus10 – ICT Games

Subtract 10 from a given 2 digit number Y 1/2

## 100 Square Hunt -11 – ICT Games

Click the number on the 100 square that is 11 less than the target number Y1/2

## Count on Convict – ICT Games

Subtraction by counting on KS1

## 10 less shoot out – ICT Games

Say a number that is 10 less than any given number to 99. Y1/2

## Soccer Subtraction – ICT Games

see the sum given & click on the footballers to subtract them then have a shot at goal. Y1

## Target Take Away – to 20 – ICT Games

Subtraction sum given. Click the targets under the blocks to remove them. Count how many are left. YR/1

## Subtraction Action – Kids Numbers

Click on numbers to achieve the target number by successive subtractions – against the clock Y3/4

## Sum Sense – Oswego

drag the cards to complete the line subtraction sums Y3

## Bricks – Primary Resources

Work downwards on an addition pyramid by subtracting. 4 levels Y1/6

0

## Subtraction HTU – HTU – Mark Weddell

Step by step vertical subtraction – expanded method Y3/4

## Decomposition Expanded – A Blundred

Difficult concept to do in flash – not sure if it is better than teacher’s own! Worth a look, though.

## + & – 9 or 11 – Mark Weddell

Section of 100 square shown for adding or subtracting 9 or 11by using knowledge of 100 square!!

## Game show easy – Ambleweb

Fast 4 player game doing calculations with an answer of 20 or less Y2/3

## Count Hoot’s + game – BBC – LAAC

Uses spots on ladybirds to make sums. 3 levels, Additon, subtraction or both. Yr R/1/2/3

## Count Hoot’s – game – BBC – LAAC

Subtraction with ladybird spots Yr R/1/2/3

## Count Hoot’s + & – game – BBC – LAAC

Mixed addition & subtraction with ladybird spots then numbers. 3 levels up to TU under 20. Yr R/1/2/3

## Test the toad – BBC – Number Time-

Add & subtract sums up to 20 Yr R/1/2

## Pole Climber – Count On

Timed sums, including inverses. 4 levels Y1

## + & – Number Lines – ICT Games

Set start number & intervals to use these addition & subtraction number lines KS1

## Empty Number Line – ICT Games

Set the starting point on the empty number line to label it & use the arrows to add in amounts given to find total of two numbers Y 1/2

## Merc Move – ICT Games

Solve the problems & reach the target number by crashing into the correct coloured cars. Y2

## Bricks 2 – Primary Resources

Addition Pyramid wall to fill in from bottom by addition or from top by inverse. Several combinations of difficulty levels

## Missing Numbers – Primary Resources

Fill in missing numbers to complete number sentences. 4 levels of difficulty –

## Vertical Addition – HTU + HTU – Mark Weddell

Vertical addition – Standard column method Step by step