Have a look through this slideshow to find out about a handy way to approach solving word problems.
An operation is a mathematical process. The most common operations are add, subtract, multiply and divide. Can you write down the mathematical symbols to match these?
One-step problems require one operation to solve the problem. Two-step and multi-step maths problems require more than one operation to find an answer.
Often, you will have to use the answer to the first step using one operation to work out the rest of the problem.
Now, let's take a look at some problems in this slideshow.
You might not always have a phone or calculator to hand – so here is Albert to explain how to estimate in your head, by rounding up or down.
What is estimation?
You can use estimation to get a rough idea of a calculation. You can round the numbers up or down to make it easier to do calculations in your head, or with a pen and paper. We usually round to the nearest 5 or 10.
It can be useful to have an estimation when planning something in advance, for example if you were ordering cakes for the guests at a party, or the materials for building.
Worksheet - Categorising problems
Sort the word problems into the correct category by identifying the operation needed to solve them. You could have a go at solving the problems once you have sorted them.
There's more to learn
Have a look at these other resources around the BBC and the web.