1. How high is it?

Solution: Let Mingming's height be x cm.

x+(3x- 10)=222

4x=232

x=58

Answer: Mingming is 58cm tall.

2. What other questions can you ask? (at least two)

How tall is dad? How tall is mom?

58x3= 174 (cm) 58x3-10 =174-10 =164 (cm)

A: Dad's height 174cm. A: Mom's height 164cm.