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...
Investigate different ways of making £5 at Charlie's bank.
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
The idea of this game is to add or subtract the two numbers on the dice and cover the result on the grid, trying to get a line of three. Are there some numbers that are good to aim for?
Do you notice anything about the solutions when you add and/or
subtract consecutive negative numbers?
Different combinations of the weights available allow you to make different totals. Which totals can you make?
There are nasty versions of this dice game but we'll start with the nice ones...
Who said that adding, subtracting, multiplying and dividing
couldn't be fun?
Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...
Charlie has made a Magic V. Can you use his example to make some more? And how about Magic Ls, Ns and Ws?
This article suggests some ways of making sense of calculations involving positive and negative numbers.
A collection of short Stage 3 problems on place value, integers, ordering and rounding.
How many different differences can you make?
By selecting digits for an addition grid, what targets can you make?
What happens when you add a three digit number to its reverse?