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Use vectors to collect as many gems as you can and bring them safely home!
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
This article suggests some ways of making sense of calculations involving positive and negative numbers.
Play this game to learn about adding and subtracting positive and negative numbers
Imagine a very strange bank account where you are only allowed to do two things...
Different combinations of the weights available allow you to make different totals. Which totals can you make?
How can we help students make sense of addition and subtraction of negative numbers?
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 ?
Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Investigate different ways of making £5 at Charlie's bank.
This article -useful for teachers and learners - gives a short account of the history of negative numbers.
Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?