Question

The answers to the worksheet

Answer 1

An arithmetical operator used for converting a quantity expressed in a set of unit into an equivalent in another set of units are known as conversion factor.

The base SI units for length is meter, $m$.

The conversion of $m$ to other relevant units are as:

$1 m = 100 cm$

$1 m = 1000 mm$

So, $1 cm = 10 mm$

Now converting the given units as:

1a.  

Since, $1 cm = 0.01 m$

So, $995 cm = 9.95 m$

2a.

Since,  $1 cm = 10 mm$

So,  $0.5 cm = 5 mm$

3a.

$2.79 cm = 27.9 mm$

4a.

Since, $1 mm = 0.1 cm$

So, $718 mm = 71.8 cm$

5a.

$36.6 cm = 366 mm$

6a.

Since, $1 m = 100 cm$

So, $3.6 m = 360 cm$

7a.

$51 mm = 5.1 cm$

8a.

$29 mm = 2.9 cm$

9a.

$32 mm = 3.2 cm$

10a.

Since,  $1 cm = 10 mm$

So,  $38.8 cm = 388 mm$

1b.

Since,  $1 mm = 0.1 cm$

So,  $209 mm = 20.9 cm$

2b.

Since,  $1 cm = 0.01 m$

So,  $862 cm = 8.62 m$

3b.

$36 mm = 3.6 cm$

4b.

$497 mm = 49.7 cm$

5b.

$134 cm = 1.34 m$

6b.

$3.1 cm = 31 mm$

7b.

$1.28 m = 128 cm$

8b.

$19.35 cm = 193.5 mm$

9b.

$0.4 m = 40 cm$

10b.

$1.87 m = 187 cm$