Problem solving

Comparatives

Read and answer the question.

There are four cars in the carpark. 

The red car is four metres long. 

The blue one is ten centimetres shorter than the red one. 

The black one is 20 centimetres longer than the blue one, and the green is 15 cm shorter than the black one.

Which of the four cars is the longest? ……………………………………..

KEY

The black one is