Other tags that relate to Button-up
Visualising. Generalising. Investigations. Addition & subtraction. Practical Activity. Working systematically. Multiplication & division. Interactivities. Combinations. Factors and multiples.There are 114 results
Broad Topics > Properties of Numbers > Factors and multiples
Seven Flipped
Age 7 to 11
Challenge Level
Investigate the smallest number of moves it takes to turn these mats upside-down if you can only turn exactly three at a time.
It Figures
Age 7 to 11
Challenge Level
Suppose we allow ourselves to use three numbers less than 10 and multiply them together. How many different products can you find? How do you know you've got them all?
Rearranged Rectangle
Age 7 to 11
Challenge Level
How many different rectangles can you make using this set of rods?
Sweets in a Box
Age 7 to 11
Challenge Level
How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?
Nineteen Hexagons
Age 5 to 7
Challenge Level
In this maze of hexagons, you start in the centre at 0. The next hexagon must be a multiple of 2 and the next a multiple of 5. What are the possible paths you could take?
Multiplication Squares
Age 7 to 11
Challenge Level
Can you work out the arrangement of the digits in the square so that the given products are correct? The numbers 1 - 9 may be used once and once only.
Growing Garlic
Age 5 to 7
Challenge Level
Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?
Multiply Multiples 1
Age 7 to 11
Challenge Level
Can you complete this calculation by filling in the missing numbers? In how many different ways can you do it?
Multiples Grid
Age 7 to 11
Challenge Level
What do the numbers shaded in blue on this hundred square have in common? What do you notice about the pink numbers? How about the shaded numbers in the other squares?
Multiply Multiples 2
Age 7 to 11
Challenge Level
Can you work out some different ways to balance this equation?
Multiply Multiples 3
Age 7 to 11
Challenge Level
Have a go at balancing this equation. Can you find different ways of doing it?
Pebbles
Age 7 to 11
Challenge Level
Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?
The Moons of Vuvv
Age 7 to 11
Challenge Level
The planet of Vuvv has seven moons. Can you work out how long it is between each super-eclipse?
Lots of Lollies
Age 5 to 7
Challenge Level
Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?
One of Thirty-six
Age 5 to 7
Challenge Level
Can you find the chosen number from the grid using the clues?
A Square Deal
Age 7 to 11
Challenge Level
Complete the magic square using the numbers 1 to 25 once each. Each row, column and diagonal adds up to 65.
Are You Well Balanced?
Age 5 to 7
Challenge Level
Can you work out how to make each side of this balance equally balanced? You can put more than one weight on a hook.
Mystery Matrix
Age 7 to 11
Challenge Level
Can you fill in this table square? The numbers 2 -12 were used to generate it with just one number used twice.
Tiling
Age 7 to 11
Challenge Level
An investigation that gives you the opportunity to make and justify predictions.
Neighbours
Age 7 to 11
Challenge Level
In a square in which the houses are evenly spaced, numbers 3 and 10 are opposite each other. What is the smallest and what is the largest possible number of houses in the square?
Times Tables Shifts
Age 7 to 11
Challenge Level
In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?
Curious Number
Age 7 to 11
Challenge Level
Can you order the digits from 1-3 to make a number which is divisible by 3 so when the last digit is removed it becomes a 2-figure number divisible by 2, and so on?
Biscuit Decorations
Age 5 to 7
Challenge Level
Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?
Constant Counting
Age 5 to 7
Challenge Level
You can make a calculator count for you by any number you choose. You can count by ones to reach 24. You can count by twos to reach 24. What else can you count by to reach 24?
A Mixed-up Clock
Age 7 to 11
Challenge Level
There is a clock-face where the numbers have become all mixed up. Can you find out where all the numbers have got to from these ten statements?
Colour Wheels
Age 7 to 11
Challenge Level
Imagine a wheel with different markings painted on it at regular intervals. Can you predict the colour of the 18th mark? The 100th mark?
Fractions in a Box
Age 7 to 11
Challenge Level
The discs for this game are kept in a flat square box with a square hole for each. Use the information to find out how many discs of each colour there are in the box.
Skip Counting
Age 5 to 7
Challenge Level
Find the squares that Froggie skips onto to get to the pumpkin patch. She starts on 3 and finishes on 30, but she lands only on a square that has a number 3 more than the square she skips from.
Multiplication Square Jigsaw
Age 7 to 11
Challenge Level
Can you complete this jigsaw of the multiplication square?
Fitted
Age 7 to 11
Challenge Level
Nine squares with side lengths 1, 4, 7, 8, 9, 10, 14, 15, and 18 cm can be fitted together to form a rectangle. What are the dimensions of the rectangle?
Same Length Trains
Age 5 to 7
Challenge Level
How many trains can you make which are the same length as Matt's and Katie's, using rods that are identical?
Being Resilient - Primary Number
Age 5 to 11
Challenge Level
Number problems at primary level that may require resilience.
Ip Dip
Age 5 to 11
Challenge Level
"Ip dip sky blue! Who's 'it'? It's you!" Where would you position yourself so that you are 'it' if there are two players? Three players ...?
Six in a Circle
Age 5 to 7
Challenge Level
If there is a ring of six chairs and thirty children must either sit on a chair or stand behind one, how many children will be behind each chair?
Gran, How Old Are You?
Age 7 to 11
Challenge Level
When Charlie asked his grandmother how old she is, he didn't get a straightforward reply! Can you work out how old she is?
Zios and Zepts
Age 7 to 11
Challenge Level
On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zios and how many Zepts were there?
Abundant Numbers
Age 7 to 11
Challenge Level
48 is called an abundant number because it is less than the sum of its factors (without itself). Can you find some more abundant numbers?
Music to My Ears
Age 7 to 11
Challenge Level
Can you predict when you'll be clapping and when you'll be clicking if you start this rhythm? How about when a friend begins a new rhythm at the same time?
Clapping Times
Age 5 to 7
Challenge Level
If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud?
Sets of Numbers
Age 7 to 11
Challenge Level
How many different sets of numbers with at least four members can you find in the numbers in this box?
Two Primes Make One Square
Age 7 to 11
Challenge Level
Can you make square numbers by adding two prime numbers together?
Round and Round the Circle
Age 7 to 11
Challenge Level
What happens if you join every second point on this circle? How about every third point? Try with different steps and see if you can predict what will happen.
Sets of Four Numbers
Age 7 to 11
Challenge Level
There are ten children in Becky's group. Can you find a set of numbers for each of them? Are there any other sets?
Factors and Multiples Game for Two
Age 7 to 14
Challenge Level
Factors and Multiples game for an adult and child. How can you make sure you win this game?
Red Balloons, Blue Balloons
Age 7 to 11
Challenge Level
Katie and Will have some balloons. Will's balloon burst at exactly the same size as Katie's at the beginning of a puff. How many puffs had Will done before his balloon burst?
Crossings
Age 7 to 11
Challenge Level
In this problem we are looking at sets of parallel sticks that cross each other. What is the least number of crossings you can make? And the greatest?
Making Shapes
Age 5 to 7
Challenge Level
Arrange any number of counters from these 18 on the grid to make a rectangle. What numbers of counters make rectangles? How many different rectangles can you make with each number of counters?
NRICH is part of the family of activities in the Millennium Mathematics Project.