Madam Lee had a bale of cloth measuring 150 m in her shop. A customer asked her to sew 10 cushion covers, each requiring 3 m of cloth. How much cloth had she left?

To find out how much cloth Madam Lee had left, we need to subtract the total amount of cloth used to sew the cushion covers from the initial amount of cloth she had.

First, we need to determine the total amount of cloth used to sew the cushion covers. Since each cushion cover requires 3 meters of cloth and Madam Lee sewed 10 cushion covers, the total amount of cloth used is:

3 meters/cover × 10 covers = 30 meters

Now, to find out how much cloth Madam Lee has left, we subtract the amount of cloth used from the initial amount:

150 meters - 30 meters = 120 meters

Therefore, Madam Lee has 120 meters of cloth left.

3 X 10 = ?

150 - (3 X 10)= ?