# Resources tagged with: Working systematically

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### There are 318 results

Broad Topics > Thinking Mathematically > Working systematically

### Fair Exchange

##### Age 5 to 7Challenge Level

In your bank, you have three types of coins. The number of spots shows how much they are worth. Can you choose coins to exchange with the groups given to make the same total?

### Here to There 1 2 3

##### Age 5 to 7Challenge Level

Move from the START to the FINISH by moving across or down to the next square. Can you find a route to make these totals?

### Worms

##### Age 7 to 11Challenge Level

Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?

### Being Resourceful - Primary Number

##### Age 5 to 11Challenge Level

Number problems at primary level that require careful consideration.

### Robot Monsters

##### Age 5 to 7Challenge Level

Use these head, body and leg pieces to make Robot Monsters which are different heights.

### Snails' Trails

##### Age 7 to 11Challenge Level

Alice and Brian are snails who live on a wall and can only travel along the cracks. Alice wants to go to see Brian. How far is the shortest route along the cracks? Is there more than one way to go?

### Nineteen Hexagons

##### Age 5 to 7Challenge 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?

### How Much Did it Cost?

##### Age 7 to 11Challenge Level

Use your logical-thinking skills to deduce how much Dan's crisps and ice-cream cost altogether.

### Spell by Numbers

##### Age 7 to 11Challenge Level

Can you substitute numbers for the letters in these sums?

### All Seated

##### Age 7 to 11Challenge Level

Look carefully at the numbers. What do you notice? Can you make another square using the numbers 1 to 16, that displays the same properties?

### Zargon Glasses

##### Age 7 to 11Challenge 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?

### Polo Square

##### Age 7 to 11Challenge Level

Arrange eight of the numbers between 1 and 9 in the Polo Square below so that each side adds to the same total.

### Lots of Lollies

##### Age 5 to 7Challenge 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?

### Finding Fifteen

##### Age 7 to 11Challenge Level

Tim had nine cards each with a different number from 1 to 9 on it. How could he have put them into three piles so that the total in each pile was 15?

### Sums and Differences 2

##### Age 7 to 11Challenge Level

Find the sum and difference between a pair of two-digit numbers. Now find the sum and difference between the sum and difference! What happens?

### Unit Differences

##### Age 5 to 7Challenge Level

This challenge is about finding the difference between numbers which have the same tens digit.

### Sums and Differences 1

##### Age 7 to 11Challenge Level

This challenge focuses on finding the sum and difference of pairs of two-digit numbers.

### Plate Spotting

##### Age 7 to 11Challenge Level

I was in my car when I noticed a line of four cars on the lane next to me with number plates starting and ending with J, K, L and M. What order were they in?

### Seating Arrangements

##### Age 7 to 11Challenge Level

Sitting around a table are three girls and three boys. Use the clues to work out were each person is sitting.

### Open Squares

##### Age 7 to 11Challenge Level

This task, written for the National Young Mathematicians' Award 2016, focuses on 'open squares'. What would the next five open squares look like?

### Team Scream

##### Age 7 to 11Challenge 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?

### Dart Target

##### Age 7 to 11Challenge Level

This task, written for the National Young Mathematicians' Award 2016, invites you to explore the different combinations of scores that you might get on these dart boards.

### Crack the Code

##### Age 7 to 11Challenge Level

The Zargoes use almost the same alphabet as English. What does this birthday message say?

### Bunny Hop

##### Age 7 to 11Challenge Level

What is the smallest number of jumps needed before the white rabbits and the grey rabbits can continue along their path?

### The Puzzling Sweet Shop

##### Age 5 to 11Challenge 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?

### Possible Pieces

##### Age 5 to 11Challenge Level

Can you create jigsaw pieces which are based on a square shape, with at least one peg and one hole?

### Two Egg Timers

##### Age 7 to 11Challenge Level

You have two egg timers. One takes 4 minutes exactly to empty and the other takes 7 minutes. What times in whole minutes can you measure and how?

### A Right Charlie

##### Age 7 to 11Challenge Level

Can you use this information to work out Charlie's house number?

### Twenty Divided Into Six

##### Age 7 to 11Challenge 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?

### Family Tree

##### Age 7 to 11Challenge Level

Use the clues to find out who's who in the family, to fill in the family tree and to find out which of the family members are mathematicians and which are not.

##### Age 7 to 11Challenge Level

Can you put plus signs in so this is true? 1 2 3 4 5 6 7 8 9 = 99 How many ways can you do it?

### Professional Circles

##### Age 7 to 11Challenge Level

Six friends sat around a circular table. Can you work out from the information who sat where and what their profession were?

### Pouring the Punch Drink

##### Age 7 to 11Challenge Level

There are 4 jugs which hold 9 litres, 7 litres, 4 litres and 2 litres. Find a way to pour 9 litres of drink from one jug to another until you are left with exactly 3 litres in three of the jugs.

### Rabbits in the Pen

##### Age 7 to 11Challenge Level

Using the statements, can you work out how many of each type of rabbit there are in these pens?

### Mrs Beeswax

##### Age 5 to 7Challenge 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?

### A-magical Number Maze

##### Age 7 to 11Challenge 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!

### Fake Gold

##### Age 7 to 11Challenge 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?

### Bean Bags for Bernard's Bag

##### Age 7 to 11Challenge 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?

### Pasta Timing

##### Age 7 to 11Challenge 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?

### Arranging the Tables

##### Age 7 to 11Challenge 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.

### It Figures

##### Age 7 to 11Challenge 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?

### Calendar Cubes

##### Age 7 to 11Challenge Level

Make a pair of cubes that can be moved to show all the days of the month from the 1st to the 31st.

### Six Is the Sum

##### Age 7 to 11Challenge Level

What do the digits in the number fifteen add up to? How many other numbers have digits with the same total but no zeros?

### The Pet Graph

##### Age 7 to 11Challenge Level

Tim's class collected data about all their pets. Can you put the animal names under each column in the block graph using the information?

### Growing Garlic

##### Age 5 to 7Challenge Level

Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?

### The Dice Train

##### Age 7 to 11Challenge Level

This dice train has been made using specific rules. How many different trains can you make?

### Route Product

##### Age 7 to 11Challenge Level

Find the product of the numbers on the routes from A to B. Which route has the smallest product? Which the largest?

### Octa Space

##### Age 7 to 11Challenge Level

In the planet system of Octa the planets are arranged in the shape of an octahedron. How many different routes could be taken to get from Planet A to Planet Zargon?

### The Pied Piper of Hamelin

##### Age 7 to 11Challenge 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!

### A Mixed-up Clock

##### Age 7 to 11Challenge 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?