Question

Xia and Hugh measured the lengths of two different ladybugs. Xia's ladybug measured 3 millimeters and Hugh's ladybug measured 2 mil. Which number sentence best represents the difference in length of the two ladybugs, in centimeters?
0.5 - 0.3 = 0.2
0.5 - 0.3 = 0.02
0.05 - 0.03 = 0.02
0.05 - 0.03 = 0.2

Answer 1

To find the statement that represents the difference between these two, you will convert both to centimeters by dividing the number of millimeters by 10.

3 mm = 0.3 cm
5 mm = 0.5 cm

0.5 - 0.3 = 0.2 cm difference

The first choice is correct.