Other tags that relate to Noah
Combinations. Multiplication & division. Comparing and ordering numbers. Games. Working systematically. Addition & subtraction. Investigations. Visualising. Counting. Practical Activity.There are 318 results
Broad Topics > Thinking Mathematically > Working systematically
1 to 8
Age 7 to 11
Challenge Level
Place the numbers 1 to 8 in the circles so that no consecutive numbers are joined by a line.
Painting Possibilities
Age 7 to 11
Challenge Level
This task, written for the National Young Mathematicians' Award 2016, involves open-topped boxes made with interlocking cubes. Explore the number of units of paint that are needed to cover the boxes. . . .
Routes 1 and 5
Age 5 to 7
Challenge Level
Find your way through the grid starting at 2 and following these operations. What number do you end on?
Sitting Round the Party Tables
Age 5 to 11
Challenge Level
Sweets are given out to party-goers in a particular way. Investigate the total number of sweets received by people sitting in different positions.
Birthday Cake Candles
Age 7 to 11
Challenge Level
This challenge involves calculating the number of candles needed on birthday cakes. It is an opportunity to explore numbers and discover new things.
Button-up Some More
Age 7 to 11
Challenge Level
How many ways can you find to do up all four buttons on my coat? How about if I had five buttons? Six ...?
Dodecamagic
Age 7 to 11
Challenge Level
Here you see the front and back views of a dodecahedron. Each vertex has been numbered so that the numbers around each pentagonal face add up to 65. Can you find all the missing numbers?
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?
Seating Arrangements
Age 7 to 11
Challenge Level
Sitting around a table are three girls and three boys. Use the clues to work out were each person is sitting.
Two Dots
Age 7 to 11
Challenge Level
Place eight dots on this diagram, so that there are only two dots on each straight line and only two dots on each circle.
Team Scream
Age 7 to 11
Challenge Level
Seven friends went to a fun fair with lots of scary rides. They decided to pair up for rides until each friend had ridden once with each of the others. What was the total number rides?
Make Pairs
Age 7 to 11
Challenge Level
Put 10 counters in a row. Find a way to arrange the counters into five pairs, evenly spaced in a row, in just 5 moves, using the rules.
Single Track
Age 7 to 11
Challenge Level
What is the best way to shunt these carriages so that each train can continue its journey?
Shunting Puzzle
Age 7 to 11
Challenge Level
Can you shunt the trucks so that the Cattle truck and the Sheep truck change places and the Engine is back on the main line?
Crack the Code
Age 7 to 11
Challenge Level
The Zargoes use almost the same alphabet as English. What does this birthday message say?
Count the Trapeziums
Age 7 to 11
Challenge Level
How many trapeziums, of various sizes, are hidden in this picture?
Bunny Hop
Age 7 to 11
Challenge Level
What is the smallest number of jumps needed before the white rabbits and the grey rabbits can continue along their path?
Broken Toaster
Age 7 to 11 Short
Challenge Level
Only one side of a two-slice toaster is working. What is the quickest way to toast both sides of three slices of bread?
Room Doubling
Age 7 to 11
Challenge Level
Investigate the different ways you could split up these rooms so that you have double the number.
Whose Face?
Age 5 to 11
Challenge Level
These are the faces of Will, Lil, Bill, Phil and Jill. Use the clues to work out which name goes with each face.
Mixed-up Socks
Age 5 to 7
Challenge Level
Start with three pairs of socks. Now mix them up so that no mismatched pair is the same as another mismatched pair. Is there more than one way to do it?
Page Numbers
Age 7 to 11 Short
Challenge Level
Exactly 195 digits have been used to number the pages in a book. How many pages does the book have?
Possible Pieces
Age 5 to 11
Challenge Level
Can you create jigsaw pieces which are based on a square shape, with at least one peg and one hole?
Jumping Squares
Age 5 to 7
Challenge Level
In this problem it is not the squares that jump, you do the jumping! The idea is to go round the track in as few jumps as possible.
Jumping Cricket
Age 5 to 7
Challenge Level
El Crico the cricket has to cross a square patio to get home. He can jump the length of one tile, two tiles and three tiles. Can you find a path that would get El Crico home in three jumps?
Calcunos
Age 7 to 11
Challenge Level
If we had 16 light bars which digital numbers could we make? How will you know you've found them all?
Newspapers
Age 7 to 11
Challenge Level
When newspaper pages get separated at home we have to try to sort them out and get things in the correct order. How many ways can we arrange these pages so that the numbering may be different?
Eight Queens
Age 7 to 11
Challenge Level
Place eight queens on an chessboard (an 8 by 8 grid) so that none can capture any of the others.
Cereal Packets
Age 7 to 11
Challenge Level
How can you put five cereal packets together to make different shapes if you must put them face-to-face?
Buying a Balloon
Age 7 to 11
Challenge Level
Lolla bought a balloon at the circus. She gave the clown six coins to pay for it. What could Lolla have paid for the balloon?
Two on Five
Age 5 to 11
Challenge Level
Take 5 cubes of one colour and 2 of another colour. How many different ways can you join them if the 5 must touch the table and the 2 must not touch the table?
How Many Times?
Age 7 to 11
Challenge Level
On a digital 24 hour clock, at certain times, all the digits are consecutive. How many times like this are there between midnight and 7 a.m.?
Ordered Ways of Working Upper Primary
Age 7 to 11
Challenge Level
These activities lend themselves to systematic working in the sense that it helps if you have an ordered approach.
Ice Cream
Age 7 to 11
Challenge Level
You cannot choose a selection of ice cream flavours that includes totally what someone has already chosen. Have a go and find all the different ways in which seven children can have ice cream.
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?
Cubes Here and There
Age 7 to 11
Challenge Level
How many shapes can you build from three red and two green cubes? Can you use what you've found out to predict the number for four red and two green?
Pasta Timing
Age 7 to 11
Challenge Level
Nina must cook some pasta for 15 minutes but she only has a 7-minute sand-timer and an 11-minute sand-timer. How can she use these timers to measure exactly 15 minutes?
Bean Bags for Bernard's Bag
Age 7 to 11
Challenge Level
How could you put eight beanbags in the hoops so that there are four in the blue hoop, five in the red and six in the yellow? Can you find all the ways of doing this?
Stairs
Age 5 to 11
Challenge Level
This challenge is to design different step arrangements, which must go along a distance of 6 on the steps and must end up at 6 high.
One to Fifteen
Age 7 to 11
Challenge Level
Can you put the numbers from 1 to 15 on the circles so that no consecutive numbers lie anywhere along a continuous straight line?
Fake Gold
Age 7 to 11
Challenge Level
A merchant brings four bars of gold to a jeweller. How can the jeweller use the scales just twice to identify the lighter, fake bar?
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?
Mrs Beeswax
Age 5 to 7
Challenge Level
In how many ways could Mrs Beeswax put ten coins into her three puddings so that each pudding ended up with at least two coins?
Chocs, Mints, Jellies
Age 7 to 11
Challenge Level
In a bowl there are 4 Chocolates, 3 Jellies and 5 Mints. Find a way to share the sweets between the three children so they each get the kind they like. Is there more than one way to do it?
Two Dice
Age 5 to 7
Challenge Level
Find all the numbers that can be made by adding the dots on two dice.
Folded Number Line
Age 7 to 11
Challenge Level
When I fold a 0-20 number line, I end up with 'stacks' of numbers on top of each other. These challenges involve varying the length of the number line and investigating the 'stack totals'.
More and More Buckets
Age 7 to 11
Challenge Level
In this challenge, buckets come in five different sizes. If you choose some buckets, can you investigate the different ways in which they can be filled?
Wag Worms
Age 7 to 11
Challenge Level
When intergalactic Wag Worms are born they look just like a cube. Each year they grow another cube in any direction. Find all the shapes that five-year-old Wag Worms can be.
Making Cuboids
Age 7 to 11
Challenge Level
Let's say you can only use two different lengths - 2 units and 4 units. Using just these 2 lengths as the edges how many different cuboids can you make?
Jigsaw Pieces
Age 7 to 11
Challenge Level
How will you go about finding all the jigsaw pieces that have one peg and one hole?
NRICH is part of the family of activities in the Millennium Mathematics Project.