abbreviating

"Only a small fraction of the students passed the difficult math test. "

"Note this fine detail in the lower left corner."

"My son's writing homework included practicing cursive letters. "

"When writing the recipe, I made a mistake by omitting the baking powder. "

"The teacher asked us to shorten our essays to one page. "

"The omission of her name from the guest list was a significant oversight. "

"To understand the problem better, we need to simplify the instructions. "

"The teacher's red scarf was a recognizable feature; everyone in the class knew it was hers. "

"She will skip from one end of the sidewalk to the other."

"The fraction of the pie left was very small; only a tiny bit remained. "

"The muscle contraction during exercise resulted in a temporary reduction in the size of the arm. "

"The addresses on the envelopes were smudged, making it difficult to deliver the mail. "