Question

a dining room table measures 1.78 m long. Express this measurement in millimeters. show work.
then explain your thinking using a place value chart.

Answer 1

1.78 m. How many centimetres is that? (1 m = 100cm, so you have to multiply by 100)

so 1.78m = 178 cm.

No, let's make this into mm

Answer 2

10 mm = 1 cm, so we have to multiply by 10.

so 178cm = 1780mm :)