Question

DYLAN

The hardware store sells leftover pieces of lumber at a discount. The first piece of lumber Jolie finds is labeled as 500 millimeters long, the second piece is labeled as 1

meter long, and the third piece is labeled as 20 centimeters long

How many centimeters shorter is the first piece of lumber that Jolie finds than the length of the second and third pieces of lumber combined?

Use the number pad to enter your answer in the box

centimeters

Answer 1

70 cm

Explanation:

Given:

The first piece of lumber Jolie finds is labeled as 500 millimeters long, the second piece is labeled as 1 meter long, and the third piece is labeled as 20 centimeters long .

To find: How many centimeters shorter is the first piece of lumber that Jolie finds than the length of the second and third pieces of lumber combined

Solution:

Length of first piece = 500 mm = 50 cm (As 1 cm = 10 mm)

Length of second piece = 1 m =100 cm (As 1 m =100 cm )

Length of third piece = 20 cm

Sum of length of second and third piece = 100 + 20 =120 cm

So,

Sum of length of second and third piece - Length of first piece = 120 - 50 = 70 cm

Therefore,

the first piece of lumber is shorter than the length of the second and third pieces of lumber combined by 70 cm.