# Lesson overview: Calculating flexibly

View in classroomToday we will learn to estimate using derived facts and then adjust them to calculate the answer. We will then be able to solve a range of problems selecting suitable strategies and giving reasons for our choices.

### Transcript

### 15 lessons in Multiplication and division:

- Multiples and factors
- Factor pairs
- Prime numbers
- Factor and multiple chains
- Multiplying and dividing by 10, 100, 1000
- Doubling and halving strategies
- Using derived facts to multiply mentally
- Calculating flexibly
- Short multiplication
- Long multiplication
- Using factors to multiply
- Using multiples to divide
- Short division
- Division with remainders
- Consolidation and Review