599. 145 м 7 см + 89 м 95 см

To solve this problem, we need to add the lengths given. First, we add the centimeters: 7 cm + 95 cm = 102 cm. Since 102 cm is equal to 1 meter and 2 cm, we carry over 1 meter to the meter sum. Then, we add the meters: 145 m + 89 m + 1 m (carried over) = 235 m. The remaining centimeters are 2 cm. The total length is 235 m and 2 cm.