Problem solving

We have been learning how to solve word problems in maths. Look at this fantastic work!

Below is a problem to try and solve at home. I have taught the children that sometimes drawing a simple picture can be a big help.
Anyone that solves the problem over the weekend and bring it in to show me on Monday will get a little reward.

Cows have 4 legs. If there are 5 cows in a field how many legs are there altogether?