Ben and his mum are planting garlic. Cycling Squares Age 7 to 11 Challenge Level: What do you think? Using the information given, can you replace the stars in the calculation with figures? Proof by Logical Argument Age 5 to 11 These tasks are useful contexts in which to explore proof by logical argument. Carrying Cards Age 7 to 11 Challenge Level:

This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient. Illustrating Number Properties with Arrays Age 5 to 11 This article for teachers describes how modelling number properties involving multiplication using an array of objects not only allows children to represent their thinking with concrete materials,. How many Zios and how many Zepts were there? What do you notice? What could my number be? The tasks in this feature encourage learners to become fluent with times tables, but with a difference Can you find the smallest number that lights up all four lights?

This challenge encourages you to explore dividing a three-digit number by a single-digit number. Can you get close to than your partner?

## Multiplication and Division KS1

Here is a chance to play a version of the classic Countdown Game. Will you be the first to reach the target?

The numbers pfoblem were used to generate it with just one number used twice. This activity is best done with a whole class or in a large group.

Ordering Cards Age 5 to 11 Challenge Level: What’s in the Box? Can you replace the letters with numbers? This problem looks at the patterns on differently sized square grids.

# Maths Search :

All the Digits Age 7 to 11 Sovling Level: This article for teachers looks at how teachers can use problems from the NRICH site to help them teach division. What questions would you like to ask? These articles will support primary teachers as they develop children’s understanding of number and calculation. Birthday Sharing Age 5 to 7 Challenge Level: They are each holding a card with a number on it.

What happens when we multiply a complex number by a real or an imaginary number? Probleem a look at the multiplication square. Can you put the numbers 1 to 8 into the circles so that the four calculations are correct? What Do You Need?

# Long Multiplication :

We can arrange dots in a similar way to the 5 on a dice and they usually sit multipliction well into a rectangular shape. Can you prove it?

What’s in the Box? Divisibility Tests Age 11 to 16 This article takes the reader through divisibility tests and how they work. An Introduction to Vectors Age 14 to 18 The article provides a summary of the elementary ideas about vectors usually met in school mathematics, describes what vectors are and how to add, subtract and multiply them by scalars and indicates.

Clapping Times Age 5 to 7 Challenge Level: What happens when you add the digits of a number then multiply the result by 2 and you keep doing this? Student Solutions Age 5 to On the same day he sowed a bean in another pot.

## Multiplication Squares

Age 5 to Alf describes how the Gattegno chart helped a class of year olds gain an awareness of place value and of the inverse relationship between multiplication and division. What happens for other sizes? It’s Sahila’s birthday and she is having a party. Who said that nfich, subtracting, multiplying and dividing couldn’t be fun? This big box multiplies anything that goes inside it by the same number.