Resources tagged with Place value similar to Amy's Dominoes:
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Multiplication & division. Factors and multiples. Divisibility. Place value. Properties of numbers. Trial and improvement. Dominoes. Addition & subtraction. Working systematically. Investigations.There are 72 results
Broad Topics > Numbers and the Number System > Place value
Being Resilient - Primary Number
Stage: 1 and 2 Challenge Level: 
Number problems at primary level that may require resilience.
Being Collaborative - Primary Number
Stage: 1 and 2 Challenge Level:
Number problems at primary level to work on with others.
Six Is the Sum
Stage: 2 Challenge 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?
Becky's Number Plumber
Stage: 2 Challenge Level:
Becky created a number plumber which multiplies by 5 and subtracts 4. What do you notice about the numbers that it produces? Can you explain your findings?
Which Is Quicker?
Stage: 2 Challenge Level:
Which is quicker, counting up to 30 in ones or counting up to 300 in tens? Why?
Napier's Bones
Stage: 2 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?
Arrange the Digits
Stage: 3 Challenge Level:
Can you arrange the digits 1,2,3,4,5,6,7,8,9 into three 3-digit numbers such that their total is close to 1500?
Diagonal Sums
Stage: 2 Challenge Level:
In this 100 square, look at the green square which contains the numbers 2, 3, 12 and 13. What is the sum of the numbers that are diagonally opposite each other? What do you notice?
Song Book
Stage: 2 Challenge Level:
A school song book contains 700 songs. The numbers of the songs are displayed by combining special small single-digit boards. What is the minimum number of small boards that is needed?
X Marks the Spot
Stage: 3 Challenge Level:
When the number x 1 x x x is multiplied by 417 this gives the answer 9 x x x 0 5 7. Find the missing digits, each of which is represented by an "x" .
Digit Sum
Stage: 3 Challenge Level:
What is the sum of all the digits in all the integers from one to one million?
Trebling
Stage: 2 Challenge Level:
Can you replace the letters with numbers? Is there only one solution in each case?
Which Scripts?
Stage: 2 Challenge Level:
There are six numbers written in five different scripts. Can you sort out which is which?
All the Digits
Stage: 2 Challenge Level:
This multiplication uses each of the digits 0 - 9 once and once only. Using the information given, can you replace the stars in the calculation with figures?
Being Resourceful - Primary Number
Stage: 1 and 2 Challenge Level:
Number problems at primary level that require careful consideration.
What Do You Need?
Stage: 2 Challenge Level:
Four of these clues are needed to find the chosen number on this grid and four are true but do nothing to help in finding the number. Can you sort out the clues and find the number?
Multiply Multiples 1
Stage: 2 Challenge Level:
Can you complete this calculation by filling in the missing numbers? In how many different ways can you do it?
Multiply Multiples 3
Stage: 2 Challenge Level:
Have a go at balancing this equation. Can you find different ways of doing it?
Nice or Nasty for Two
Stage: 2 Challenge Level:
Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your opponent.
Subtraction Surprise
Stage: 2 and 3 Challenge Level:
Try out some calculations. Are you surprised by the results?
ABC
Stage: 2 Challenge Level:
In the multiplication calculation, some of the digits have been replaced by letters and others by asterisks. Can you reconstruct the original multiplication?
Multiply Multiples 2
Stage: 2 Challenge Level:
Can you work out some different ways to balance this equation?
Coded Hundred Square
Stage: 2 Challenge Level:
This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?
Balance Power
Stage: 3, 4 and 5 Challenge Level:
Using balancing scales what is the least number of weights needed to weigh all integer masses from 1 to 1000? Placing some of the weights in the same pan as the object how many are needed?
Being Curious - Primary Number
Stage: 1 and 2 Challenge Level:
Number problems for inquiring primary learners.
One Million to Seven
Stage: 2 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?
The Thousands Game
Stage: 2 Challenge Level:
Each child in Class 3 took four numbers out of the bag. Who had made the highest even number?
Exploring Simple Mappings
Stage: 3 Challenge Level:
Explore the relationship between simple linear functions and their graphs.
Skeleton
Stage: 3 Challenge Level:
Amazing as it may seem the three fives remaining in the following `skeleton' are sufficient to reconstruct the entire long division sum.
Six Times Five
Stage: 3 Challenge Level:
How many six digit numbers are there which DO NOT contain a 5?
Method in Multiplying Madness?
Stage: 2 and 3 Challenge Level:
Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?
Basically
Stage: 3 Challenge Level:
The number 3723(in base 10) is written as 123 in another base. What is that base?
Lesser Digits
Stage: 3 Challenge Level:
How many positive integers less than or equal to 4000 can be written down without using the digits 7, 8 or 9?
Permute It
Stage: 3 Challenge Level:
Take the numbers 1, 2, 3, 4 and 5 and imagine them written down in every possible order to give 5 digit numbers. Find the sum of the resulting numbers.
Power Mad!
Stage: 3 Challenge Level:
Powers of numbers behave in surprising ways. Take a look at some of these and try to explain why they are true.
What an Odd Fact(or)
Stage: 3 Challenge Level:
Can you show that 1^99 + 2^99 + 3^99 + 4^99 + 5^99 is divisible by 5?
Repeaters
Stage: 3 Challenge Level:
Choose any 3 digits and make a 6 digit number by repeating the 3 digits in the same order (e.g. 594594). Explain why whatever digits you choose the number will always be divisible by 7, 11 and 13.
Round the Dice Decimals 2
Stage: 2 Challenge Level:
What happens when you round these numbers to the nearest whole number?
Football Sum
Stage: 3 Challenge Level:
Find the values of the nine letters in the sum: FOOT + BALL = GAME
Not a Polite Question
Stage: 3 Challenge Level:
When asked how old she was, the teacher replied: My age in years is not prime but odd and when reversed and added to my age you have a perfect square...
Round the Dice Decimals 1
Stage: 2 Challenge Level:
Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?
Round the Three Dice
Stage: 2 Challenge Level:
What happens when you round these three-digit numbers to the nearest 100?
Pupils' Recording or Pupils Recording
Stage: 1, 2 and 3
This article, written for teachers, looks at the different kinds of recordings encountered in Primary Mathematics lessons and the importance of not jumping to conclusions!
Alien Counting
Stage: 2 Challenge Level:
Investigate the different ways these aliens count in this challenge. You could start by thinking about how each of them would write our number 7.
Even Up
Stage: 3 Challenge Level:
Consider all of the five digit numbers which we can form using only the digits 2, 4, 6 and 8. If these numbers are arranged in ascending order, what is the 512th number?
Just Repeat
Stage: 3 Challenge Level:
Think of any three-digit number. Repeat the digits. The 6-digit number that you end up with is divisible by 91. Is this a coincidence?
NRICH is part of the family of activities in the Millennium Mathematics Project.