Natalie is 172cm tall. Ms. Sunny is 158cm. How much shorter is Ms. Sunny than Ms. Natalie?
172 - 158 = 14. Ms. Sunny is 14cm shorter than Natalie.
Jae Min ran 284 metres. Then he ran another 42m! How many metres did he run altogether?
284 + 42 = 326. He ran 326m altogether.
The race is 300 metres. Louis already ran 150m. How many metres does he have left?
300 - 150 = 150. He has 150m left.