Question

DYLAN

Answer 1

Answer:

70 cm

Step-by-step 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.