Consolidating and reviewing length

Maths

I would like to draw another line that is six centimetres shorter than 18 cm. How long will my line be?

Johnny's arm is 15 cm long and Anna's arm is 12 cm long. What is the total length of both their arms?

I would like to draw another line that is seven centimetres longer than 11cm. How long will my line be?

Stuart walked 36 m from his house to the shop. Lisa walked 23 m from her house to the shop. How far did they both walk?

Stuart walked 36 m from his house to the shop. Lisa walked 23 m from her house to the shop. How much further did Stuart walk than Lisa?

Lisa walked 23 m from her house to the shop. Stuart walked 13 metres more. How far did Stuart walk?

Stuart walked 36 m from his house to the shop. Lisa walked 13 metres less. How far did Lisa walk?