Question

One is 12 centimeters, and the other is 15 centimeters. In millimeters, what is the difference of the two heights?

Answer 1

Explanation:

1 cm= 10 mm

then ,12 cm = 12*10=120mm

15 cm = 15*10 =150 mm

difference between two heights

150 mm-120 mm = 30 mm

Answer 2

Answer:

30

Explanation:

1 cm=10 mm

12 cm=120mm

15cm=150 mm

now (150-120)mm=30mm