Other tags that relate to More Plant Spaces
Investigations. Factors and multiples. Combinations. Addition & subtraction. Recording mathematics. Place value. Multiplication & division. Games. Venn diagrams. Mathematical reasoning & proof. Working systematically.There are 153 results
Broad Topics > Calculations and Numerical Methods > Multiplication & division
Arranging the Tables
Age 7 to 11
Challenge Level
There are 44 people coming to a dinner party. There are 15 square tables that seat 4 people. Find a way to seat the 44 people using all 15 tables, with no empty places.
How Old?
Age 7 to 11
Challenge Level
Cherri, Saxon, Mel and Paul are friends. They are all different ages. Can you find out the age of each friend using the information?
X Is 5 Squares
Age 7 to 11
Challenge Level
Can you arrange 5 different digits (from 0 - 9) in the cross in the way described?
Rabbits in the Pen
Age 7 to 11
Challenge Level
Using the statements, can you work out how many of each type of rabbit there are in these pens?
A-magical Number Maze
Age 7 to 11
Challenge Level
This magic square has operations written in it, to make it into a maze. Start wherever you like, go through every cell and go out a total of 15!
Throw a 100
Age 7 to 11
Challenge Level
Can you score 100 by throwing rings on this board? Is there more than way to do it?
Rocco's Race
Age 7 to 11 Short
Challenge Level
Rocco ran in a 200 m race for his class. Use the information to find out how many runners there were in the race and what Rocco's finishing position was.
Twenty Divided Into Six
Age 7 to 11
Challenge Level
Katie had a pack of 20 cards numbered from 1 to 20. She arranged the cards into 6 unequal piles where each pile added to the same total. What was the total and how could this be done?
Calendar Calculations
Age 7 to 11
Challenge Level
Try adding together the dates of all the days in one week. Now multiply the first date by 7 and add 21. Can you explain what happens?
Let's Get Flexible!
Age 5 to 11
In this article for primary teachers, Ems outlines how we can encourage learners to be flexible in their approach to calculation, and why this is crucial.
Function Machines
Age 7 to 11
Challenge Level
If the numbers 5, 7 and 4 go into this function machine, what numbers will come out?
One Million to Seven
Age 7 to 11
Challenge Level
Start by putting one million (1 000 000) into the display of your calculator. Can you reduce this to 7 using just the 7 key and add, subtract, multiply, divide and equals as many times as you like?
Buckets of Thinking
Age 7 to 11
Challenge Level
There are three buckets each of which holds a maximum of 5 litres. Use the clues to work out how much liquid there is in each bucket.
Clever Keys
Age 7 to 11 Short
Challenge Level
On a calculator, make 15 by using only the 2 key and any of the four operations keys. How many ways can you find to do it?
The Pied Piper of Hamelin
Age 7 to 11
Challenge Level
This problem is based on the story of the Pied Piper of Hamelin. Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!
Cows and Sheep
Age 7 to 11
Challenge Level
Use your logical reasoning to work out how many cows and how many sheep there are in each field.
Sept03 Sept03 Sept03
Age 7 to 11
Challenge Level
This number has 903 digits. What is the sum of all 903 digits?
Oranges and Lemons
Age 7 to 11
Challenge Level
On the table there is a pile of oranges and lemons that weighs exactly one kilogram. Using the information, can you work out how many lemons there are?
The Deca Tree
Age 7 to 11
Challenge Level
Find out what a Deca Tree is and then work out how many leaves there will be after the woodcutter has cut off a trunk, a branch, a twig and a leaf.
How Many Eggs?
Age 7 to 11
Challenge Level
Peter, Melanie, Amil and Jack received a total of 38 chocolate eggs. Use the information to work out how many eggs each person had.
Asteroid Blast
Age 7 to 11
Challenge Level
A game for 2 people. Use your skills of addition, subtraction, multiplication and division to blast the asteroids.
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?
Sending Cards
Age 7 to 11
Challenge Level
This challenge asks you to investigate the total number of cards that would be sent if four children send one to all three others. How many would be sent if there were five children? Six?
Zargon Glasses
Age 7 to 11
Challenge Level
Zumf makes spectacles for the residents of the planet Zargon, who have either 3 eyes or 4 eyes. How many lenses will Zumf need to make all the different orders for 9 families?
Clock Face
Age 7 to 11
Challenge Level
Where can you draw a line on a clock face so that the numbers on both sides have the same total?
Compare the Calculations
Age 7 to 11
Challenge Level
Can you put these four calculations into order of difficulty? How did you decide?
Gift Stacks
Age 7 to 11
Challenge Level
Use the information to work out how many gifts there are in each pile.
How Much Did it Cost?
Age 7 to 11
Challenge Level
Use your logical-thinking skills to deduce how much Dan's crisps and ice-cream cost altogether.
Forgot the Numbers
Age 7 to 11
Challenge Level
On my calculator I divided one whole number by another whole number and got the answer 3.125. If the numbers are both under 50, what are they?
Penta Post
Age 7 to 11
Challenge Level
Here are the prices for 1st and 2nd class mail within the UK. You have an unlimited number of each of these stamps. Which stamps would you need to post a parcel weighing 825g?
Napier's Bones
Age 7 to 11
Challenge Level
The Scot, John Napier, invented these strips about 400 years ago to help calculate multiplication and division. Can you work out how to use Napier's bones to find the answer to these multiplications?
Dice and Spinner Numbers
Age 7 to 11
Challenge Level
If you had any number of ordinary dice, what are the possible ways of making their totals 6? What would the product of the dice be each time?
Being Resilient - Primary Number
Age 5 to 11
Challenge Level
Number problems at primary level that may require resilience.
Being Resourceful - Primary Number
Age 5 to 11
Challenge Level
Number problems at primary level that require careful consideration.
The 24 Game
Age 7 to 11
Challenge Level
There are over sixty different ways of making 24 by adding, subtracting, multiplying and dividing all four numbers 4, 6, 6 and 8 (using each number only once). How many can you find?
Magic Constants
Age 7 to 11
Challenge Level
In a Magic Square all the rows, columns and diagonals add to the 'Magic Constant'. How would you change the magic constant of this square?
Developing Number Fluency - What, Why and How
Age 5 to 11
In this article for primary teachers, Lynne McClure outlines what is meant by fluency in the context of number and explains how our selection of NRICH tasks can help.
The Number Crunching Machine
Age 7 to 11
Challenge Level
Put a number at the top of the machine and collect a number at the bottom. What do you get? Which numbers get back to themselves?
Place Value as a Building Block for Developing Fluency in the Calculation Process
Age 5 to 11
This article for primary teachers encourages exploration of two fundamental ideas, exchange and 'unitising', which will help children become more fluent when calculating.
More Playing with Number Upper Primary
Age 7 to 11
Related resources supporting pupils' understanding of multiplication and division through playing with numbers.
The Puzzling Sweet Shop
Age 5 to 11
Challenge Level
There were chews for 2p, mini eggs for 3p, Chocko bars for 5p and lollypops for 7p in the sweet shop. What could each of the children buy with their money?
Current Playing with Number Upper Primary Teacher
Age 7 to 11
Challenge Level
Resources to support understanding of multiplication and division through playing with number.
Oh! Harry!
Age 7 to 11
Challenge Level
A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?
The Clockmaker's Birthday Cake
Age 7 to 11
Challenge Level
The clockmaker's wife cut up his birthday cake to look like a clock face. Can you work out who received each piece?
More Playing with Numbers Upper Primary
Age 7 to 11
More resources to support understanding multiplication and division through playing with numbers
Dividing a Cake
Age 7 to 11
Challenge Level
Annie cut this numbered cake into 3 pieces with 3 cuts so that the numbers on each piece added to the same total. Where were the cuts and what fraction of the whole cake was each piece?
NRICH is part of the family of activities in the Millennium Mathematics Project.