**"Addition"**

## How many sums?

*By toni On 1 January, 2024 · Leave a Comment*

Put positive whole numbers into the boxes to make the sum correct.

Here is one way to do it. How many other ways can you find? Explain your answer.

Now answer the same question for the year you were born.

Click here for the HOW MANY SUMS Notes […]

## The answer is 2024 but what is the question?

*By toni On 30 December, 2023 · Leave a Comment*

You can be a creative mathematician, you can be someone who has your own mathematical ideas. Find your own interesting facts about 2024 and calculations that have the answer 2024.

What different questions can you find with 2024 as the answer? For example you might ask: ‘What is (20 + 24) + […]

The Checkit Game is suitable for all ages because you can choose the type of numbers and the operation that you will use.

You can play this game with different sets of numbers like whole numbers or integers, fractions or decimals and with (1) addition and subtraction or with (2) multiplication and […]

## Checkit Challenge

*By toni On 28 November, 2023 · Leave a Comment*

Checkit can be played by 2 players or 2 teams. Each player starts with a blank Checkit frame and invents a challenge for the opponent to complete. The entries in the boxes can be any type of numbers, algebraic expressions or even words.

The entries in the […]

## Up Down Game

*By toni On 26 November, 2023 · Leave a Comment*

For versions of the game for different age groups see the Inclusion Guide.

This is a game for two players, a group of 3 or 4 players, or for the whole class. You will need to download and cut out or otherwise make 2 sets of these 24 cards.

[…]

## Magic Square Game

*By toni On 1 October, 2023 · Leave a Comment*

The game is played with a set of cards numbered 1 to 9 and a 3-by-3 gameboard. Take turns either to put one of the 9 cards into an empty square, or to move to an adjacent empty square one of the cards that has already been placed. The winner is the […]

## Odds and Colours Games

*By toni On 11 July, 2023 · Leave a Comment*

Place in a bag or envelope two balls (or cards) with odd numbers on them, and 3 with even numbers, and play the 2 Odds in 5 game, for example with balls numbered 2, 3, 4, 5 and 6. Pick out two balls or cards at random without replacing the first one. […]

## Half a Million Game

*By toni On 27 November, 2020 · Leave a Comment*

The aim of the game is to make a number as close to half a million as possible. Which of the numbers in the table is closest to half a million?

This game uses ten cards numbered 0, 1, … 9. The cards are put face down and mixed up.

Each player […]

## Tug of War Game

*By toni On 29 August, 2020 · Leave a Comment*

Do you prefer the game if you change the rules so you only have to reach +13 or -13 to win, and it’s OK to overshoot? Why?

In the TUG MUCH HARDER GAME you can add, subtract, multiply or divide the 2 scores (in either order). […]

## Digit Detective

*By toni On 27 July, 2020 · Leave a Comment*

You are a detective and you have to discover what digits the question marks stand for. They can be any digit from 0 to 9 and they can be the same digit or different digits.

How will you find the missing digits?

What do you notice?

How many solutions are there to the calculations?

What clues […]

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