Proof by logical argument involves creating a complete chain of reasoning, with no room for ambiguity and no missing steps. The tasks below offer opportunities to use proof by logical argument. They form part of our Mastering Mathematics: Developing Generalising and Proof Feature.
problem
Strike it Out
Age
5 to 11
Challenge level
Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.
game
Dicey Operations in Line
Who said that adding, subtracting, multiplying and dividing couldn't be fun?
problem
Six Ten Total
Age
7 to 11
Challenge level
This challenge combines addition, multiplication, perseverance and even proof.
problem
Six Numbered Cubes
Age
7 to 11
Challenge level
This task combines spatial awareness with addition and multiplication.