Exploring Length in Mathematics

How many inches are in a foot?

• 12

• 8

• 10

• 14

If a pencil is 7 inches long, how long is it in centimeters?

• 20 cm

• 10 inches

• 17.78 cm

• 15 cm

Which is longer: a 10-inch ruler or a 25-centimeter ruler?

• A 25-centimeter ruler is longer.

• Both rulers are the same length.

• A 10-inch ruler is longer.

• A 10-inch ruler is shorter.

Add the lengths: 5 inches + 3 inches = ?

• 8 inches

• 10 inches

• 6 inches

• 9 inches

Subtract the lengths: 10 cm - 4 cm = ?

• 5 cm

• 6 cm

• 7 cm

• 8 cm

Convert 12 inches to centimeters.

• 30.48 centimeters

• 25.4 centimeters

• 15 centimeters

• 40 centimeters

If a book is 8 inches long and a notebook is 6 inches long, which is longer?

• The book is shorter.

• The book is longer.

• The notebook is longer.

• Both are the same length.

How many centimeters are in 1 meter?

• 200 centimeters

• 50 centimeters

• 10 centimeters

• 100 centimeters

If a string is 15 cm long, how many inches is that?

• 6.5 inches

• 5.91 inches

• 7.8 inches

• 4.2 inches

Which object is shorter: a 20 cm stick or a 7-inch stick?

• The 7-inch stick is shorter.

• The 20 cm stick is shorter.

• Both sticks are the same length.

• The 7-inch stick is longer.