# Unit: Calculation problems

## Lessons:

10 lessons

### Understanding which operations have equal priority

In this lesson we'll be looking at addition and subtraction problems and multiplication and division problems and exploring whether changing the order of operations affects the outcome.

### Order of operations

In this lesson we will be learning about the order of operations in an equation without brackets.

### Consolidating order of operations

In this lesson we'll be applying our understanding of order of operations to a range of problems.

### Linear number sequences

In this lesson we will be identifying the term to term rule in linear number sequences in order to find what terms will come next and what terms would come previous to given terms.

### Expressing missing numbers algebraically

In this lesson we will be finding the unknown values in algebraic expressions.

### Expressing missing number problems algebraically

In this lesson we will be exploring various problems and representing them using algebra.

### Finding solutions to problems with two variables

In this lesson we will be discussing how to work systematically to find all possibilities for problems with two variables.

### Consolidating linear sequences and representing problems with algebra

In this lesson we will explore two different types of problems: one that consolidates learning around linear number sequences and one that explores expressing a maths story using algebraic notation.

### Reasoning and problem solving

In this lesson we will explore two types of problem in depth, thinking carefully about how to represent each problem in order to help us find a solution.

### Reasoning and problem solving (Part 2)

In this lesson we will explore two types of problem in depth, thinking carefully about how to represent each problem in order to help us find a solution.