Comparing
How many mm in a cm
Ten
Estimate how tall the table you are sitting is in cm
About 90cm
What is 20 mm in cm
2 cm
My plant was 5cm tall and grew another 2 cm. How tall is it now?
5 + 2 = 7cm
My plant is 7cm tall.
Which is bigger?
400cm or 400mm
400cm
400mm = 40cm
How many m in a km
1000
Estimate how wide the table is you are sitting at in cm or m
About 120cm or 1.2m
What is 4cm in mm
40mm
My subway was 30 cm long. I gave 15 cm to a friend. How much do I have left?
30 - 15 = 15cm
I have 15cm of subway left.
From smallest to biggest.
6cm, 34mm, 78mm
34mm
6cm = 60mm
78mm
How many cm in a m
one hundred
estimate how tall a door is in cm
200cm
What is 5.8 cm in mm
58mm
Last weekend you built 5m of fence. This weekend your friend helped and you built another 8m of fence. How much fencing do you have now?
5 + 8 = 13m
13m of fence
Put in order from biggest to smallest.
500mm, 200cm, 1m
200cm
1m = 100cm
500mm = 50cm
What is the name for cm
Centimetre
Estimate how tall a computer monitor is in cm,
30cm
What is 1.5m in cm
150cm
The ant walked 30mm before it stopped. It then walked another 7cm. How far has it walked in total?
30mm = 3 cm
3 + 7 = 10cm
7cm = 70mm
70 + 30 = 100mm
The ant has walked 100mm/10cm in total.
Order from biggest to smallest.
80cm, 0.9m, 300mm, 700mm
0.9m = 90cm
80cm
700mm = 70cm
300mm = 30cm
What is the name for mm
milimetre
Estimate how long a bee in in mm
15mm
What is 1000m in km
1 km
May bought 40cm of red ribbon. Her Mum bought 1m of ribbon. How much did they have altogether?
1m = 100cm
100 + 40 = 140cm
Or
40 cm = 0.4 m
0.4 + 1 = 1.4m
Order from smallest to biggest.
0.3km
4000m
200m
2km
200m = 0.2km
0.3km
2km
4000m = 4km