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Subtraction Let’s take a look at subtraction now. Subtraction is where we know the whole and only one of the parts. So this question 12 – 5 = ? would look like this as a part-whole model.

The new theme is Addition and Subtraction, stories of humans becoming more and less and sometimes both with the help of technology.

Match fun story problems with the correct addition or subtraction expression.

Students put all of their addition and subtraction skills together to solve equations.

Addition is more intuitive and simpler, while subtraction takes some effort to think or reason. This tendency also extends to personal finance decisions.

We may see addition or subtraction as simple, but it requires different parts of our brain to store information and understand order.

A fun series, featuring presenter Rodd, who uses rhymes and songs to help children with counting numbers, addition and subtraction.