Solve problems involving addition, subtraction, multiplication and division and a combination of these, including understanding the meaning of the equals sign

What this means, in plain words

This is problem solving: the maths is met inside a situation, so the first job is working out which operation the question is asking for.

Addition puts amounts together to find a total. Subtraction takes one amount away, or finds the difference between two.

Multiplication is repeated addition of equal groups. Division shares a total into equal groups, or works out how many groups fit.