# Units of Measure: Converting cm² to mm²

In this worksheet, students convert areas given in cm² to mm².

Key stage:  KS 2

Curriculum topic:   Measurement

Curriculum subtopic:   Convert Units of Measure

Difficulty level:

### QUESTION 1 of 10

This worksheet is about converting areas in cm² to areas in mm².

The diagram above shows a large 1 cm square of area 1 cm2.
Each side is 1 cm or 10 mm long.

Each tiny square is 1 mm long and has an area of 1 mm2.

Ten of these tiny squares fit along each side.  There are 100 in total.

1 cm2 = 100 mm2.

Example

Change the area in cm² to an area in mm².

11 cm2
mm2

11 x 100 = 1100 mm2

Change the area in cm² to an area in mm².

5 cm2
mm2

Change the area in cm² to an area in mm².

20 cm2
mm2

Change the area in cm² to an area in mm².

2 cm2
mm2

Change the area in cm² to an area in mm².

4 cm2
mm2

Change the area in cm² to an area in mm².

3 cm2
mm2

Change the area in cm² to an area in mm².

19 cm2
mm2

Change the area in cm² to an area in mm².

9 cm2
mm2

Change the area in cm² to an area in mm².

16 cm2
mm2

Change the area in cm² to an area in mm².

12 cm2
mm2

Change the area in cm² to an area in mm².

17 cm2
mm2

• Question 1

Change the area in cm² to an area in mm².

5 cm2
mm2

500
EDDIE SAYS
5 x 100 = 500
• Question 2

Change the area in cm² to an area in mm².

20 cm2
mm2

2000
EDDIE SAYS
20 x 100 = 2000
• Question 3

Change the area in cm² to an area in mm².

2 cm2
mm2

200
EDDIE SAYS
2 x 100 = 200
• Question 4

Change the area in cm² to an area in mm².

4 cm2
mm2

400
EDDIE SAYS
4 x 100 = 400
• Question 5

Change the area in cm² to an area in mm².

3 cm2
mm2

300
EDDIE SAYS
3 x 100 = 300
• Question 6

Change the area in cm² to an area in mm².

19 cm2
mm2

1900
EDDIE SAYS
19 x 100 = 1900
• Question 7

Change the area in cm² to an area in mm².

9 cm2
mm2

900
EDDIE SAYS
9 x 100 = 900
• Question 8

Change the area in cm² to an area in mm².

16 cm2
mm2

1600
EDDIE SAYS
16 x 100 = 1600
• Question 9

Change the area in cm² to an area in mm².

12 cm2
mm2

1200
EDDIE SAYS
12 x 100 = 1200
• Question 10

Change the area in cm² to an area in mm².

17 cm2
mm2

1700
EDDIE SAYS
17 x 100 = 1700
---- OR ----

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