Resources tagged with: Positive and negative numbers
There are 23 NRICH Mathematical resources connected to Positive and negative numbers, you may find related items under Place value and the number system.
Broad Topics > Place value and the number system > Positive and negative numbers
Vector Gem Collector
Use vectors to collect as many gems as you can and bring them safely home!
Number Lines in Disguise
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
Making Sense of Positives and Negatives
This article suggests some ways of making sense of calculations involving positive and negative numbers.
Up, Down, Flying Around
Play this game to learn about adding and subtracting positive and negative numbers
Strange Bank Account
Imagine a very strange bank account where you are only allowed to do two things...
Weights
Different combinations of the weights available allow you to make different totals. Which totals can you make?
Adding and Subtracting Positive and Negative Numbers
How can we help students make sense of addition and subtraction of negative numbers?
Sea Level
The picture shows a lighthouse and some underwater creatures. Can you work out the distances between some of the different creatures?
Tug Harder!
In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?
Minus One Two Three
Substitute -1, -2 or -3, into an algebraic expression and you'll get three results. Is it possible to tell in advance which of those three will be the largest ?
Consecutive Negative Numbers
Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?
First Connect Three
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
Connect Three
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
Swimming Pool
In this problem, we're investigating the number of steps we would climb up or down to get out of or into the swimming pool. How could you number the steps below the water?
Consecutive Numbers
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Being Collaborative - Primary Number
Number problems at primary level to work on with others.
First Connect Three for Two
First Connect Three game for an adult and child. Use the dice numbers and either addition or subtraction to get three numbers in a straight line.
Strange Bank Account (part 2)
Investigate different ways of making £5 at Charlie's bank.
Positive about Negative Numbers
In this article for teachers, Liz Woodham describes resources on NRICH that can help primary-aged children get to grips with negative numbers.
The History of Negative Numbers
This article -useful for teachers and learners - gives a short account of the history of negative numbers.
Pair Sums
Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?