How do I type feet and inches?

Type it the way it is written on a drawing, like 12'-6". 12' 6 and 12 ft 6 in work too. A plain number is read as feet.

Can I answer in metres?

Yes. Type 4200 for millimetres, or add the unit: 4.2 m and 420 cm are read correctly too.

Scale reading: lesson 6 of 6Harder

No answers to pick from: work out the real length and type it. Get 10 right to finish.

The blue line is laid on the 1/2 edge of an architect's scale. How long is it at 1/2" = 1'-0"?

Some questions give you the length on the sheet and the scale. Others show a line on a scale rule. Either way you end with a real length.

Feet and inches. At 1/4" = 1'-0" the scale is 1:48. A wall of 3 1/8 in on paper is 3.125 x 48 = 150 in, which is 12'-6".
Metric. At 1:50 a wall of 84 mm on paper is 84 x 50 = 4200 mm, which is 4.2 m.

Units	You can type
Feet and inches	`12'-6"`, `12' 6`, `12 ft 6 in`, `3'-4 1/2"`
Metric	`4200`, `4200 mm`, `4.2 m`, `420 cm`

If you are stuck after two tries, you can show the answer and its working, then move on.

How do I type feet and inches?: Type it the way it is written on a drawing, like 12'-6". 12' 6 and 12 ft 6 in work too. A plain number is read as feet.
Can I answer in metres?: Yes. Type 4200 for millimetres, or add the unit: 4.2 m and 420 cm are read correctly too.

Explained in our own words and checked against trade school textbooks. Metric scales follow the ISO 5455 series.