1. Which is greatest? Show your work.
0.5 dm or 5.5 cm or 59 mm
2. Estimate in millimetres. Then measure the object to check your estimate. What is the difference?
a) The thickness of an eraser
b) The thickness of your pencil
c) The length of your money card
3. How many millimetres would you need to add to the line below for it to be:
_______________ = 42 mm
a) 1 dm b) 7 cm c) 65 mm
4. A tree grows 15 mm a year. How long until the trees reaches the heights below?
a) 100 mm b) 6 cm c) 1 m
