
Addition 

Objective:
Y2: to understand what each digit in a 3digit number means.
To use vertical methods to calculate 3digit addition.






Adding Alchemy

Draw a grid on piece of paper, (2digit or 3digit). Look at the target number. Then place the numbers as they appear to try and make total as close as possible to that number. 






Objective:
Y1: To add ten to any 2 digit number.






Adding 10 Depth Charger

The sonar on your ship is always wrong by 10 metres. Read the sonar scanner and add ten to destroy Dr Trumpenfurter's robot submarines. 







Objective:
Y2:Add or subtract mentally a onedigit number or a multiple of 10 to or from any twodigit number; use practical and informal written methods to add and subtract twodigit numbers






Catapult Count On

Use your knowledge of number bonds to 10 to help you to destroy the castle, by jumping to the next multiple of 10.
If it is too easy, tick the 'hide jumps' box.









Objective:
Y1: Use infomal methods for addition of a one digit number, or 10 to a one or two digit number.
Calculate add/take away 9 and 11 by moving 10 and then adjusting by one.
Y2: Use practical and informal methods to add and subtract twodigit numbers.






Mummy Number Lines

A numberline calculation activity. Includes three levels of addition and subtraction, adding and taking awa y 9, 10 and 11. 







Objective:
Y1: Use infomal methods for addition of a one digit number, or 10 to a one or two digit number.
Y2: Use practical and informal methods to add and subtract twodigit numbers.
Y3: Calculate subtraction as difference.






Numberline Boxes

A numberline demonstrator. You can take away, calculate subtraction as the difference or complete division calculations via repeated subtraction.








Objective:
Y1: T add single digit numbers.






Magic Squares

A teaching tool:
Copy the grid onto paper. Then use your knowledge of addition facts to make the magic number. 







Objective:
Y1: Use infomal methods for addition of a one digit number, or 10 to a one or two digit number.
Y2: Represent repeated addition and arrays as multiplication and... repeated subtraction as division.
Use practical and informal methods to add and subtract twodigit numbers.






Numberline Jump Maker

A numberline demonstrator. You can take away, calculate subtraction as the difference or complete division calculations via repeated subtraction.








Objective:
Y1/2: Adding by bridging through 10.
Y1: Find the 'difference' by counting up.
Y2: Use informal methods to represent addition, subtraction, multiplication and division.






Number
line

A demonstrator for use on the IWB. Draw leaps and click for number tags on the lines.
You will need Flash Player 6:Get Flash Player 6 







Objective:
Y2: To know that you can add more than two numbers together.
Quick recall of addition facts.






Flight 4 Fuel

Collect fuel by flying into it.
SHOOT THE FUEL THAT YOU DON'T WANT!
The faster you shoot the fuel that you don't want, the faster you see new fuel!
You will need Flash Player 6:Get Flash Player 6 







Objective:
Y1: Know by heart all of the pairs of numbers that total 10.
Y2: Know by heart all of the addition...[sic]facts for each number to at least 10.






Save The Whale Version 2

The whale is stuck in the lake, she wants to got to the sea. Click on the number bond that would complete the water pipe. Then place your choice on the end of the water pipe.
This is different from the old 'Save the Whale' game in that the pipes are easier to move and you can choose totals other than 10.
You will need Flash Player 6:Get Flash Player 6 







Objective:
Y1:






Abacus

A simple Abacus for use on the IWB.
You will need Flash Player 6:Get Flash Player 6 







Objective:
YR, Y1 & Y2: Recall number facts to 5, 10 or 20.
Recall bonds of 5, 10 or 20.
Recall doubling facts to 10 or 20.
Y2: Use '5 and a bit' facts when adding.






Brilliant Beadstring
Now with colour changer!!
Thank you
Mr Henry!

Teaching tool only:
Choose one or two beadstrings. Practise bonds of 10 or 20, number facts to 10 or 20.
Year 2 classes could practice '5 and a bit' facts. Drag the screenshade over the beads to hide a number.
You will need Flash Player 6:Get Flash Player 6
PLEASE MOVE THE BEADS STEADILY. Overzealous bead dragging may result in them overlapping. If this happens, refresh the page.
Thank you to Mr Henry from Smeeth Primary School for suggesting the colour changer!! 







Objective:
Y1: Make 5 and 'a bit'.
Practise addition facts up to 5+5.
To count on when adding.






Funny Fingers

Teaching Tool Only!
Click on the fingers to demonstrate addition facts up to 5+5, e.g. 4+3=7.
Demonstrate 5 and 'a bit' facts, e.g. 5+3=8
You will need Flash Player 6:Get Flash Player 6 







Objective:
Y1/2: Adding by bridging through 10.






Special Space Jumps

An activity for Year 1 and 2 children, adding single digit numbers by bridging through 10.
With many thanks to Karen Gray, who suggested this activity.
Will only bridge through 10 and no other multiples of 10. Intended as a starting point for teachers. First keypad will not allow the players to jump straight to the answer.
You will need Flash Player 6:Get Flash Player 6 








Objective:
To develop pencil and paper methods to complete additions.
To add two 2digit numbers together by adding the tens digit first.






Techno Tortoise

A demonstrator for the use of number lines.
Includes a game for adding two 2digit numbers together by adding the tens first. Answer 5 questions correctly and you can play the flying game.
You will need Flash Player 6:Get Flash Player 6 







Objective:
Recall number facts up to 10+10.






Funky Mummy

Recall number facts up to 10+10. See the Funky Mummy dance when you get it right! Get 10 answers correct without clicking on a wrong sarcophacus and you can write in Egyptian hieroglyphs.
Imperial Avenue Infant Sch
You will need Flash Player 6:Get Flash Player 6 







Objective:
Recall bonds of 20.






Funky Mummy 20

Recall bonds of 20. See the Funky Mummy dance when you get it right! Get 10 answers correct without clicking on a wrong sarcophacus and you can write in Egyptian hieroglyphs.
You will need Flash Player 6:Get Flash Player 6 







Objective:






Add Subtract Number Lines

Use the number line to demonstrate your choice of addtion or subtraction problem. 







Objective:
Know simple addition facts up to 9 + 9.






safe cracker

Learn and practise single digit addition facts by turning the tumblers on a safe. If you get four correct you can enter the safe and play a game.
You will need Flash Player 6:Get Flash Player 6 







Objective: Use the knowledge that addition can be done in any order to do mental calculations more efficiently by partitioning into '5 and a bit' when adding 6, 7, 8 or 9 then recombine.






5 and a bit
Ogre hit!

Add together numbers like 6, 7, 8 and 9 by using facts that we know, such as 6=5+1. So to make addition more efficient we can think of these numbers as '5 and a bit'. First adding the 5, then the 'bit'. In this activity the player will need to partition two such numbers before they add them together. 







Objective: read whole numbers from 0 to 100.
vocab: tens, units, ones
Add 10 to a given 2 digit number.






100 Hunt +10

As above but this time add 10 to the number shown.








Objective: read whole numbers from 0 to 100.
vocab: tens, units, ones
Add 9 to a given 2 digit number by adding 10 and correcting by 1.






100 Hunt +9

As above but this time add 9 to the number shown.








Objective: read whole numbers from 0 to 100.
vocab: tens, units, ones
Add 9 to a given 2 digit number by adding 10 and correcting by 1.






100 Hunt +11

As above but this time add 11 to the number shown.








Objective: (Y1) Add 9 to a single digit number by adding 10 and taking away1.
(Y2) Add 9 by adding 10 and then sdjusting by 1.






Adding 9 Fairy

The fairy wants to get into the houses, collect the keys by adding 9 to the number on the door. Do this by adding 10 and taking away 1. (Year One children are only supposed to work on single digit numbers, this activity may need checking for differentiation).








Objective: (Y1) Adding 10 to a number less then 89.
(YR)Say the number that is 10 more than any given 2 digit number.






Add 10 Sub Challenge

Adding 10 to a number. A 2 player game where correctly adding 10 will fire a torpedo at your opponent's submarine, 5 hits and your opponent rises to the surface.
It may help the children if they have a 100 square to hand whilst playing.








Objective: Say a number that is 10 more or less than a given number.






Octopus Game

Click and hold on the shell that shows a number 10 more than the given number.








Objective: Say a number that is 10 or 1 more than a given number.






Froggy Hops

Finding 10 more or 1 more than a given number, (counting on).
Click on the tops of the lilly pads!








Objective: Know by heart all pairs of numbers with a total of 10.






Catch 10

In a similar way to the games at the seaside, imagine your mouse pointer is a hammer, you must tap all the animals on the head with a total of 10.








Objective: (Y1) Know bonds of 5. Add by counting on.
(Y2) Add by using bonds and bridging.






+5 Fuel Stop

Add 5 units of fuel to each ship that lands at your refuelling base. Year 1 children can do this by counting on. Year 2 children can do this by breaking 5 into it's bonds e.g. 17+5= 17+3+2. 







Objective: Y1 and Y2, Know what each digit in a two digit number represents.






Lifeguard

Read the radar screen and use the motor boat to travel along a number line and rescue struggling swimmers.
This activity will be included with the 'Norfolk Number Line Working Party' document and CD ROM due for release in 2003. 







Objective: to know that a triangle may stand for an unknown number in a number sentence.






Missing Numbers

Use the counting stick to help you work out the value of the missing number.







